[time-nuts] ] Need a Watch Recommendation

[Ronald Held]

To my best knowledge, neither Bathys nor Hoptroff are making CSAC
watches anymore.
  Ronald
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Re: [time-nuts] Need a Watch Recommendation

[Achim Vollhardt]

Hello Dave,
being 'time-nuts', it is of course to know the time of day to the
nanosecond!

That said, I truly believe there are only two wristwatches out there for
the serious time-nutter:

https://www.kickstarter.com/projects/846511652/the-worlds-first-true-atomic-wristwatch-the-cesium/updates

and of course the well known TvB wristwatch:
http://www.leapsecond.com/pages/atomic-bill/

73s Achim, DH2VA
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Re: [time-nuts] Need a Watch Recommendation

[Tim Shoppa]

Dana, the magnetic impulse of a quartz watch stepping the second hand forward 
is easily picked up by an unshielded coil. Wind a couple hundred turns of 
magnet wire around a bottle cap and hold near the watch face. Plug into the 
microphone input of a PC and run audacity to record the waveform. You will see 
60Hz/120Hz buzz in the background but the second hand stepping impulses will 
clearly show as a sharp impulse every second. Of course a small electret 
microphone can pick up the sonic impulse too and will also be useful for purely 
mechanical watches.

Broadly I’ve found cheapie quartz watches to be way more accurate than a minute 
a month. In the past I’ve marveled here about my cars clock which drifts less 
than a minute every 6 months (DST change reset interval) despite being in a 
very adverse temperature range.

Tim N3QE

> On Mar 15, 2018, at 11:51 AM, Dana Whitlow  wrote:
> 
> Most of the quartz watches I've owned were off by about 1-2 minutes per
> month,
> which I consider inexcusable.
> 
> Agreed, the mechanical trimmer is rather problematical, but I'd sure like
> to see
> *something *that the sophisticated user can tweak at home. Measurement of
> the
> current rate error is probably not much of a problem; I once tried seeing
> the
> 32kHz signal in the watch by capacitive coupling to the face, and could
> detect
> the signal.  I just tried a token attempt on my current watch and failed,
> but it
> was a crude, unshielded attempt by merely laying a 'scope probe against the
> watch face.  I was being severely jammed by the local 1230 kHz AM station.
> Anyway, the idea is to observe the signal's phase drift while triggering
> the 'scope
> from a trusted 1PPS source.
> 
> So now all that's needed is an alternate way for trimming the watch's
> frequency
> without opening the case.  There must be a way...
> 
> Dana
> 
> 
>> On Thu, Mar 15, 2018 at 8:13 AM, Bob kb8tq  wrote:
>> 
>> Hi
>> 
>> 
>>> On Mar 15, 2018, at 1:33 AM, Dana Whitlow  wrote:
>>> 
>>> I concur with Bill.  And even if one keeps tabs on the current watch
>> error,
>>> as is the usual practice by celestial navigators, once that error reaches
>>> or exceeds more than a minute the process frankly gets more clumsy and
>>> error prone.  And if a watch drifts in time very rapidly, one loses faith
>>> in its
>>> ability to coast at a known rate between checks against WWV, which
>>> opportunities are not always available when one wants, due to
>>> propagation issues.
>>> 
>>> Whatever happened to the quartz watches with trimmer capacitors
>>> for setting the rate?
>> 
>> Trimmer caps to set watch crystals are problematic. They are a source of
>> error
>> as well as a set mechanism. You bump this or that and the trimmer moves.
>> They
>> also cost money to buy and install properly (no flux in-between the plates
>> …).
>> Once that is all done you need a way to set them in the factory. Back in
>> the day,
>> yes, we hat line workers who did that sort of thing. We also sold the
>> crystal in the
>> watch module (not the whole module) for $2 once upon a time.
>> 
>> How close do you want to set it? In our case, the set was supposed to be <
>> 0.5
>> ppm of the target. Ideally you needed a design that would do a small
>> fraction
>> of a ppm in a typical situation.
>> 
>> If the trimmer is a normal device, you get about 120 degrees of travel for
>> the
>> useful part of the tuning curve. A tune range of 30 ppm for the crystal
>> and another
>> 20 ppm for the other parts would not be unusual. Even taking the 0.5 ppm
>> number,
>> you are into 120 / 100 = 1.2 degrees sort of set on that little trimmer.
>> 
>> Bottom line: They went away because they weren’t good enough and they were
>> to expensive …. Setting a modern “shoot the chip” register based module is
>> way
>> more accurate and reliable. It’s silicon so the cost is whatever sand is
>> selling
>> for ….
>> 
>> Bob
>> 
>>> 
>>> And radio controlled?  No way!
>>> The process is to delicate and marginal to rely upon.  Give me a
>>> good stable free-running watch any day.
>>> 
>>> I don't like the solar watch concept mainly because one sometimes
>>> has to go for weeks without an opportunity to expose his watch to
>>> direct sunlight (or some indoor equivalent) for the requisite period
>>> of several hours.
>>> 
>>> Yesterday I was reading the manual for the Citizen ECO series,
>>> and that thing requires far too much effort and complication to keep
>>> it working and on time.  A good watch must simply work, with no
>>> maintenance beyond occasional battery replacements (and possible
>>> gland replacement at battery-change time), and accurately enough
>>> that the time need never be reset between battery replacements.
>>> 
>>> I use an old quartz diving watch I bought just under 10 years ago,
>>> (brand no longer distinguishable), which has never drifted more than
>>> about 30 sec (usually less) between battery replacements, and 

Re: [time-nuts] Need a Watch Recommendation

[Bob kb8tq]

Hi

The most common way to pull the 32KHz signal off of a watch is via a tuned 
microphone. At least that’s the way we did it in production. A watch crystal 
*can* (but usually doesn’t) move > 100 PPM with temperature. When things 
are set up, assumptions are made about “your” temperature environment. If
the watch is off temperature vs the assumptions, it will not keep good time. 

Some numbers:

10 seconds a month is 3.8 ppm
120 seconds a month is 46 ppm 

The temperature curve is parabolic so *usually* temperature will result in a
slow watch. If the “target” set point is 10 seconds fast, you would need to 
be right at 50 ppm off to loose two minutes a month. 

If you take a look a the previous numbers on trim range on the trimmer. A 
trimmer that will do +/- 25 ppm is “adequate” for setting the watch in 
production.
It’s not good enough (by a factor of 2) to take care of a 2 minute / month 
timing 
error. 

Just for the record, I don’t think I have *ever* owned a quartz watch that was 
off by more than a 15 seconds per month. I’ve owned cheap ones and expensive
ones. They all have done pretty well. The fancy ones *have* done better ….

Bob



> On Mar 15, 2018, at 11:51 AM, Dana Whitlow  wrote:
> 
> Most of the quartz watches I've owned were off by about 1-2 minutes per
> month,
> which I consider inexcusable.
> 
> Agreed, the mechanical trimmer is rather problematical, but I'd sure like
> to see
> *something *that the sophisticated user can tweak at home. Measurement of
> the
> current rate error is probably not much of a problem; I once tried seeing
> the
> 32kHz signal in the watch by capacitive coupling to the face, and could
> detect
> the signal.  I just tried a token attempt on my current watch and failed,
> but it
> was a crude, unshielded attempt by merely laying a 'scope probe against the
> watch face.  I was being severely jammed by the local 1230 kHz AM station.
> Anyway, the idea is to observe the signal's phase drift while triggering
> the 'scope
> from a trusted 1PPS source.
> 
> So now all that's needed is an alternate way for trimming the watch's
> frequency
> without opening the case.  There must be a way...
> 
> Dana
> 
> 
> On Thu, Mar 15, 2018 at 8:13 AM, Bob kb8tq  wrote:
> 
>> Hi
>> 
>> 
>>> On Mar 15, 2018, at 1:33 AM, Dana Whitlow  wrote:
>>> 
>>> I concur with Bill.  And even if one keeps tabs on the current watch
>> error,
>>> as is the usual practice by celestial navigators, once that error reaches
>>> or exceeds more than a minute the process frankly gets more clumsy and
>>> error prone.  And if a watch drifts in time very rapidly, one loses faith
>>> in its
>>> ability to coast at a known rate between checks against WWV, which
>>> opportunities are not always available when one wants, due to
>>> propagation issues.
>>> 
>>> Whatever happened to the quartz watches with trimmer capacitors
>>> for setting the rate?
>> 
>> Trimmer caps to set watch crystals are problematic. They are a source of
>> error
>> as well as a set mechanism. You bump this or that and the trimmer moves.
>> They
>> also cost money to buy and install properly (no flux in-between the plates
>> …).
>> Once that is all done you need a way to set them in the factory. Back in
>> the day,
>> yes, we hat line workers who did that sort of thing. We also sold the
>> crystal in the
>> watch module (not the whole module) for $2 once upon a time.
>> 
>> How close do you want to set it? In our case, the set was supposed to be <
>> 0.5
>> ppm of the target. Ideally you needed a design that would do a small
>> fraction
>> of a ppm in a typical situation.
>> 
>> If the trimmer is a normal device, you get about 120 degrees of travel for
>> the
>> useful part of the tuning curve. A tune range of 30 ppm for the crystal
>> and another
>> 20 ppm for the other parts would not be unusual. Even taking the 0.5 ppm
>> number,
>> you are into 120 / 100 = 1.2 degrees sort of set on that little trimmer.
>> 
>> Bottom line: They went away because they weren’t good enough and they were
>> to expensive …. Setting a modern “shoot the chip” register based module is
>> way
>> more accurate and reliable. It’s silicon so the cost is whatever sand is
>> selling
>> for ….
>> 
>> Bob
>> 
>>> 
>>> And radio controlled?  No way!
>>> The process is to delicate and marginal to rely upon.  Give me a
>>> good stable free-running watch any day.
>>> 
>>> I don't like the solar watch concept mainly because one sometimes
>>> has to go for weeks without an opportunity to expose his watch to
>>> direct sunlight (or some indoor equivalent) for the requisite period
>>> of several hours.
>>> 
>>> Yesterday I was reading the manual for the Citizen ECO series,
>>> and that thing requires far too much effort and complication to keep
>>> it working and on time.  A good watch must simply work, with no
>>> maintenance beyond occasional battery replacements (and possible
>>> gland replacement at 

Re: [time-nuts] Need a Watch Recommendation

[Dana Whitlow]

Most of the quartz watches I've owned were off by about 1-2 minutes per
month,
which I consider inexcusable.

Agreed, the mechanical trimmer is rather problematical, but I'd sure like
to see
*something *that the sophisticated user can tweak at home. Measurement of
the
current rate error is probably not much of a problem; I once tried seeing
the
32kHz signal in the watch by capacitive coupling to the face, and could
detect
the signal.  I just tried a token attempt on my current watch and failed,
but it
was a crude, unshielded attempt by merely laying a 'scope probe against the
watch face.  I was being severely jammed by the local 1230 kHz AM station.
Anyway, the idea is to observe the signal's phase drift while triggering
the 'scope
from a trusted 1PPS source.

So now all that's needed is an alternate way for trimming the watch's
frequency
without opening the case.  There must be a way...

Dana


On Thu, Mar 15, 2018 at 8:13 AM, Bob kb8tq  wrote:

> Hi
>
>
> > On Mar 15, 2018, at 1:33 AM, Dana Whitlow  wrote:
> >
> > I concur with Bill.  And even if one keeps tabs on the current watch
> error,
> > as is the usual practice by celestial navigators, once that error reaches
> > or exceeds more than a minute the process frankly gets more clumsy and
> > error prone.  And if a watch drifts in time very rapidly, one loses faith
> > in its
> > ability to coast at a known rate between checks against WWV, which
> > opportunities are not always available when one wants, due to
> > propagation issues.
> >
> > Whatever happened to the quartz watches with trimmer capacitors
> > for setting the rate?
>
> Trimmer caps to set watch crystals are problematic. They are a source of
> error
> as well as a set mechanism. You bump this or that and the trimmer moves.
> They
> also cost money to buy and install properly (no flux in-between the plates
> …).
> Once that is all done you need a way to set them in the factory. Back in
> the day,
> yes, we hat line workers who did that sort of thing. We also sold the
> crystal in the
> watch module (not the whole module) for $2 once upon a time.
>
> How close do you want to set it? In our case, the set was supposed to be <
> 0.5
> ppm of the target. Ideally you needed a design that would do a small
> fraction
> of a ppm in a typical situation.
>
> If the trimmer is a normal device, you get about 120 degrees of travel for
> the
> useful part of the tuning curve. A tune range of 30 ppm for the crystal
> and another
> 20 ppm for the other parts would not be unusual. Even taking the 0.5 ppm
> number,
> you are into 120 / 100 = 1.2 degrees sort of set on that little trimmer.
>
> Bottom line: They went away because they weren’t good enough and they were
> to expensive …. Setting a modern “shoot the chip” register based module is
> way
> more accurate and reliable. It’s silicon so the cost is whatever sand is
> selling
> for ….
>
> Bob
>
> >
> > And radio controlled?  No way!
> > The process is to delicate and marginal to rely upon.  Give me a
> > good stable free-running watch any day.
> >
> > I don't like the solar watch concept mainly because one sometimes
> > has to go for weeks without an opportunity to expose his watch to
> > direct sunlight (or some indoor equivalent) for the requisite period
> > of several hours.
> >
> > Yesterday I was reading the manual for the Citizen ECO series,
> > and that thing requires far too much effort and complication to keep
> > it working and on time.  A good watch must simply work, with no
> > maintenance beyond occasional battery replacements (and possible
> > gland replacement at battery-change time), and accurately enough
> > that the time need never be reset between battery replacements.
> >
> > I use an old quartz diving watch I bought just under 10 years ago,
> > (brand no longer distinguishable), which has never drifted more than
> > about 30 sec (usually less) between battery replacements, and I never
> > take it off between batteries except when compelled to do so at TSA
> > checkpoints.  Aside from its LCD's failing I'd be happy to use if
> forever,
> > but it's getting awfully hard to read these days.
> >
> > Dana
> >
> >
> >
> > On Wed, Mar 14, 2018 at 10:54 PM, Bill Byrom 
> wrote:
> >
> >> On Wed, Mar 14, 2018, at 6:53 PM, Dr. David Kirkby wrote:
> >>> What is the most demanding task one would use a wrist watch for?
> >>
> >> It depends on your job or hobby.
> >>
> >> During the Apollo 13 rocket burn before their emergency re-entry, Jack
> >> Swigert used a wrist watch to time the retrorocket burn which was
> >> manually controlled by Jim Lovell. Their normal capsule chronometer was
> >> inoperative. This was mostly a differential (time interval) timing
> >> measurement.
> >> If you needed to determine your location (longitude) and all you had
> >> was a wristwatch and a sextant (and software or a table with certain
> >> information), the accuracy of the distance calculation would 

Re: [time-nuts] Need a Watch Recommendation

[Bob kb8tq]

Hi


> On Mar 15, 2018, at 1:33 AM, Dana Whitlow  wrote:
> 
> I concur with Bill.  And even if one keeps tabs on the current watch error,
> as is the usual practice by celestial navigators, once that error reaches
> or exceeds more than a minute the process frankly gets more clumsy and
> error prone.  And if a watch drifts in time very rapidly, one loses faith
> in its
> ability to coast at a known rate between checks against WWV, which
> opportunities are not always available when one wants, due to
> propagation issues.
> 
> Whatever happened to the quartz watches with trimmer capacitors
> for setting the rate?

Trimmer caps to set watch crystals are problematic. They are a source of error
as well as a set mechanism. You bump this or that and the trimmer moves. They
also cost money to buy and install properly (no flux in-between the plates …). 
Once that is all done you need a way to set them in the factory. Back in the 
day,
yes, we hat line workers who did that sort of thing. We also sold the crystal 
in the
watch module (not the whole module) for $2 once upon a time. 

How close do you want to set it? In our case, the set was supposed to be < 0.5 
ppm of the target. Ideally you needed a design that would do a small fraction
of a ppm in a typical situation. 

If the trimmer is a normal device, you get about 120 degrees of travel for the 
useful part of the tuning curve. A tune range of 30 ppm for the crystal and 
another
20 ppm for the other parts would not be unusual. Even taking the 0.5 ppm number,
you are into 120 / 100 = 1.2 degrees sort of set on that little trimmer. 

Bottom line: They went away because they weren’t good enough and they were
to expensive …. Setting a modern “shoot the chip” register based module is way
more accurate and reliable. It’s silicon so the cost is whatever sand is 
selling 
for ….

Bob

> 
> And radio controlled?  No way!
> The process is to delicate and marginal to rely upon.  Give me a
> good stable free-running watch any day.
> 
> I don't like the solar watch concept mainly because one sometimes
> has to go for weeks without an opportunity to expose his watch to
> direct sunlight (or some indoor equivalent) for the requisite period
> of several hours.
> 
> Yesterday I was reading the manual for the Citizen ECO series,
> and that thing requires far too much effort and complication to keep
> it working and on time.  A good watch must simply work, with no
> maintenance beyond occasional battery replacements (and possible
> gland replacement at battery-change time), and accurately enough
> that the time need never be reset between battery replacements.
> 
> I use an old quartz diving watch I bought just under 10 years ago,
> (brand no longer distinguishable), which has never drifted more than
> about 30 sec (usually less) between battery replacements, and I never
> take it off between batteries except when compelled to do so at TSA
> checkpoints.  Aside from its LCD's failing I'd be happy to use if forever,
> but it's getting awfully hard to read these days.
> 
> Dana
> 
> 
> 
> On Wed, Mar 14, 2018 at 10:54 PM, Bill Byrom  wrote:
> 
>> On Wed, Mar 14, 2018, at 6:53 PM, Dr. David Kirkby wrote:
>>> What is the most demanding task one would use a wrist watch for?
>> 
>> It depends on your job or hobby.
>> 
>> During the Apollo 13 rocket burn before their emergency re-entry, Jack
>> Swigert used a wrist watch to time the retrorocket burn which was
>> manually controlled by Jim Lovell. Their normal capsule chronometer was
>> inoperative. This was mostly a differential (time interval) timing
>> measurement.
>> If you needed to determine your location (longitude) and all you had
>> was a wristwatch and a sextant (and software or a table with certain
>> information), the accuracy of the distance calculation would depend on
>> the absolute time accuracy of the watch. At the equator the longitude
>> error due to time error is (40,075.16 km/day) / (86,400 sec/day) =
>> 463.8 m/sec.
>> Amateur astronomers need to know time accurate to about a second or
>> better for accurate osculation observations.
>> Amateur Radio nets and phone, Skype for Business, or WebEx conference
>> calls usually start pretty close to the scheduled time. In some cases
>> people start wondering if the organizer is delayed after about 15 to
>> 30 seconds.--
>> Bill Byrom N5BB
>> 
>> 
>> 
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>> To unsubscribe, go to https://www.febo.com/cgi-bin/
>> mailman/listinfo/time-nuts
>> and follow the instructions there.
>> 
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Re: [time-nuts] Need a Watch Recommendation

[Bob kb8tq]

Hi

Yes, but will it display TimeNuts emails on the face of the watch? 

Better hope it’s a top poster it does :) …. scrolling through a lot of text is 
sort of non-functional on the Apple Watch. 

Bob

> On Mar 14, 2018, at 9:58 PM, Jean-Louis Oneto <jl.on...@free.fr> wrote:
> 
> The half dial in 02:00 with "S M T W T F S" looks like a weekday indicator to 
> me.
> Best regards,
> Jean-Louis 
> 
> 
> 
> 
> Envoyé depuis mon appareil mobile Samsung.
> 
>  Message d'origine 
> De : Jeremy Nichols <jn6...@gmail.com> 
> Date :14/03/2018  22:40  (GMT+01:00) 
> A : Discussion of precise time and frequency measurement <time-nuts@febo.com> 
> Objet : Re: [time-nuts] Need a Watch Recommendation 
> 
> Nice but lacks "day” feature (has “date”). I don’t normally care whether
> it’s the 22nd or the 23rd but it’s nice to know whether it’s Tuesday or
> Wednesday. YMMV, of course.
> 
> Jeremy
> 
> On Wed, Mar 14, 2018 at 1:57 PM Achim Vollhardt <avoll...@physik.uzh.ch>
> wrote:
> 
>> Dear Don and all,
>> no mentioning of the Seiko Astron GPS Solar?
>> 
>> http://www.seiko-astron.com/
>> 
>> 73s
>> Achim DH2VA
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>> time-nuts mailing list -- time-nuts@febo.com
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>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>> 
> -- 
> Sent from my iPad 4.
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Re: [time-nuts] Need a Watch Recommendation

[Dana Whitlow]

I concur with Bill.  And even if one keeps tabs on the current watch error,
as is the usual practice by celestial navigators, once that error reaches
or exceeds more than a minute the process frankly gets more clumsy and
error prone.  And if a watch drifts in time very rapidly, one loses faith
in its
ability to coast at a known rate between checks against WWV, which
opportunities are not always available when one wants, due to
propagation issues.

Whatever happened to the quartz watches with trimmer capacitors
for setting the rate?

And radio controlled?  No way!
The process is to delicate and marginal to rely upon.  Give me a
good stable free-running watch any day.

I don't like the solar watch concept mainly because one sometimes
has to go for weeks without an opportunity to expose his watch to
direct sunlight (or some indoor equivalent) for the requisite period
of several hours.

Yesterday I was reading the manual for the Citizen ECO series,
and that thing requires far too much effort and complication to keep
it working and on time.  A good watch must simply work, with no
maintenance beyond occasional battery replacements (and possible
gland replacement at battery-change time), and accurately enough
that the time need never be reset between battery replacements.

I use an old quartz diving watch I bought just under 10 years ago,
(brand no longer distinguishable), which has never drifted more than
about 30 sec (usually less) between battery replacements, and I never
take it off between batteries except when compelled to do so at TSA
checkpoints.  Aside from its LCD's failing I'd be happy to use if forever,
but it's getting awfully hard to read these days.

Dana



On Wed, Mar 14, 2018 at 10:54 PM, Bill Byrom  wrote:

> On Wed, Mar 14, 2018, at 6:53 PM, Dr. David Kirkby wrote:
> > What is the most demanding task one would use a wrist watch for?
>
> It depends on your job or hobby.
>
> During the Apollo 13 rocket burn before their emergency re-entry, Jack
> Swigert used a wrist watch to time the retrorocket burn which was
> manually controlled by Jim Lovell. Their normal capsule chronometer was
> inoperative. This was mostly a differential (time interval) timing
> measurement.
> If you needed to determine your location (longitude) and all you had
> was a wristwatch and a sextant (and software or a table with certain
> information), the accuracy of the distance calculation would depend on
> the absolute time accuracy of the watch. At the equator the longitude
> error due to time error is (40,075.16 km/day) / (86,400 sec/day) =
> 463.8 m/sec.
> Amateur astronomers need to know time accurate to about a second or
> better for accurate osculation observations.
> Amateur Radio nets and phone, Skype for Business, or WebEx conference
> calls usually start pretty close to the scheduled time. In some cases
> people start wondering if the organizer is delayed after about 15 to
> 30 seconds.--
> Bill Byrom N5BB
>
>
>
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
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Re: [time-nuts] Need a Watch Recommendation

[Bill Byrom]

On Wed, Mar 14, 2018, at 6:53 PM, Dr. David Kirkby wrote:
> What is the most demanding task one would use a wrist watch for? 

It depends on your job or hobby. 

During the Apollo 13 rocket burn before their emergency re-entry, Jack
Swigert used a wrist watch to time the retrorocket burn which was
manually controlled by Jim Lovell. Their normal capsule chronometer was
inoperative. This was mostly a differential (time interval) timing
measurement.
If you needed to determine your location (longitude) and all you had
was a wristwatch and a sextant (and software or a table with certain
information), the accuracy of the distance calculation would depend on
the absolute time accuracy of the watch. At the equator the longitude
error due to time error is (40,075.16 km/day) / (86,400 sec/day) =
463.8 m/sec.
Amateur astronomers need to know time accurate to about a second or
better for accurate osculation observations.
Amateur Radio nets and phone, Skype for Business, or WebEx conference
calls usually start pretty close to the scheduled time. In some cases
people start wondering if the organizer is delayed after about 15 to
30 seconds.--
Bill Byrom N5BB



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Re: [time-nuts] Need a Watch Recommendation

[Jean-Louis Oneto]

The half dial in 02:00 with "S M T W T F S" looks like a weekday indicator to 
me.
Best regards,
Jean-Louis 




Envoyé depuis mon appareil mobile Samsung.

 Message d'origine 
De : Jeremy Nichols <jn6...@gmail.com> 
Date :14/03/2018  22:40  (GMT+01:00) 
A : Discussion of precise time and frequency measurement <time-nuts@febo.com> 
Objet : Re: [time-nuts] Need a Watch Recommendation 

Nice but lacks "day” feature (has “date”). I don’t normally care whether
it’s the 22nd or the 23rd but it’s nice to know whether it’s Tuesday or
Wednesday. YMMV, of course.

Jeremy

On Wed, Mar 14, 2018 at 1:57 PM Achim Vollhardt <avoll...@physik.uzh.ch>
wrote:

> Dear Don and all,
> no mentioning of the Seiko Astron GPS Solar?
>
> http://www.seiko-astron.com/
>
> 73s
> Achim DH2VA
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Re: [time-nuts] Need a Watch Recommendation

[Dr. David Kirkby]

On 5 March 2018 at 16:50, William H. Fite  wrote:

> And that is just my point--well, part of it, anyway--ultra-precise
> measurement of time is profoundly important, and rightly the primary focus
> of this group. But for the wrist, very, very few of us need pin-point
> accuracy--though many seem to perceive that we do. My Tissot mechanical
> chronograph is right now doing a fantastic job of timing the eggs I'm
> boiling for my lunch.
>

What is the most demanding task one would use a wrist watch for? The doors
on trains in the UK lock up to 30 s before the train is due to leave. It is
most frustrating to arrive at a platform, with the train stationary, but no
way to get in. I would estimate that about 20 seconds is good enough for
making a decision about just how fast one has to run for a train.

Buying tickets for events like Wimbledon tennis in the UK can demand one
attempts at the right time, as tickets become available and sold out very
quickly. But one would be using a computer to purchase them, so I don't
think that comes under the requirements of a wrist watch.

Dave
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Re: [time-nuts] Need a Watch Recommendation

[Jeremy Nichols]

Nice but lacks "day” feature (has “date”). I don’t normally care whether
it’s the 22nd or the 23rd but it’s nice to know whether it’s Tuesday or
Wednesday. YMMV, of course.

Jeremy

On Wed, Mar 14, 2018 at 1:57 PM Achim Vollhardt 
wrote:

> Dear Don and all,
> no mentioning of the Seiko Astron GPS Solar?
>
> http://www.seiko-astron.com/
>
> 73s
> Achim DH2VA
> ___
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
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Re: [time-nuts] Need a Watch Recommendation

[Achim Vollhardt]

Dear Don and all,
no mentioning of the Seiko Astron GPS Solar?

http://www.seiko-astron.com/

73s
Achim DH2VA
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Re: [time-nuts] Need a Watch Recommendation

[Pete Stephenson]

On 3/5/2018 7:38 AM, Don Murray via time-nuts wrote:

> So, Time Nuts...  any suggestions or recommendations?

For non-formal, day-to-day wear, I've been partial to Casio G-Shock
watches for a long time. They're rugged, reliable, and have the basic
features one might want: stopwatch, countdown timer, a few user-settable
alarms, etc. without too many bells and whistles.

Watches with "Multi-Band 6" have long wave time signal receiving
capability and can receive signals from WWVB, MSF, DCF77, and
transmitters in China and Japan.

They also make watches that have GPS receivers, and hybrid GPS and long
wave receivers for redundancy.

I've worn a GWM850-1, which is a Multi-Band 6 watch, for a long time and
it's served me well. Unfortunately, Casio doesn't make that specific
model anymore, but there's lots of other similar models available. Mine
tries to set itself every night starting at midnight and trying again
hourly until it either succeeds at setting the time or it fails after
4:00am. It also charges its internal battery from a solar panel formed
into the watch face, so one never (modulo the battery eventually
degrading) needs to change it. I've found that even with liberal use of
the EL backlight, the battery never gets below the "medium" level during
winter when the watch rarely sees the sun, and then fully charges up
again in springtime.

Cheers!
-Pete

-- 
Pete Stephenson
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Re: [time-nuts] Need a Watch Recommendation

[J. L. Trantham]

Don,

I am very pleased with the performance of my CITIZEN Eco-Drive SKYHAWK.  It can 
receive WWVB (USA), JJY (Japan), or DCF77 (Germany).  I am convinced it is 
accurate to within 1 second at all times.  It is a 'Blue Angels' watch, part of 
the NaviHawk series I think.

http://www.citizenwatch-global.com/support/pdf/u600/e.pdf

The link to the manual is above.

Good luck.

Joe

-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Don Murray via 
time-nuts
Sent: Monday, March 05, 2018 12:38 AM
To: time-nuts@febo.com
Subject: [time-nuts] Need a Watch Recommendation

Hello Time Nuts...


 
After 6 years of no troubles, in sync with WWV any hour of the day, flawless 
transfer between standard and daylight time my Stauer Titanium Atomic 
wristwatch bite the dust a year ago.
 
Since then, Stauer has sent me three replacements, each with some type of 
problem.  
 
So it looks as if I am in need of a new wristwatch, which will give me some 
kind of time accuracy.
 
So, Time Nuts...  any suggestions or recommendations?
 
TNX
 
73
Don
W4WJ
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Re: [time-nuts] Need a Watch Recommendation

[Tom Knox]

I think what makes the IWatch unique is it has an option that makes it a 
standalone cell phone. With this new option it no longer need to be in 
proximity of you IPhone. You leave the IPhone at home and have a fully function 
cell phone on your wrist. The only hitch is they will not let you active a 
watch separately, it must be tied to you IPhone number.

Garmin also make some nice sport watches that a fully functional GPS receivers. 
Everything but a one PPS and 10MHz output.

Cheers;

Thomas Knox





From: time-nuts <time-nuts-boun...@febo.com> on behalf of Nick Sayer via 
time-nuts <time-nuts@febo.com>
Sent: Monday, March 5, 2018 10:13 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Need a Watch Recommendation

Lots of folks have chimed in on this thread, but I will just add that the Apple 
watch is an NTP client. I’m extremely happy with mine, but the reasons I am are 
far, far wider than its accuracy (which I can only judge by eye, which is an 
extraordinary low bar for a Time Nut).

> On Mar 4, 2018, at 10:38 PM, Don Murray via time-nuts <time-nuts@febo.com> 
> wrote:
>
> Hello Time Nuts...
>
>
>
> After 6 years of no troubles, in sync with WWV any
> hour of the day, flawless transfer between
> standard and daylight time my Stauer Titanium
> Atomic wristwatch bite the dust a year ago.
>
> Since then, Stauer has sent me three replacements,
> each with some type of problem.
>
> So it looks as if I am in need of a new wristwatch,
> which will give me some kind of time accuracy.
>
> So, Time Nuts...  any suggestions or recommendations?
>
> TNX
>
> 73
> Don
> W4WJ
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time-nuts is a low volume, high SNR list for the discussion of precise time and 
frequency measurement and related topics. To see the collection of prior 
postings to ...


> and follow the instructions there.

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Re: [time-nuts] Need a Watch Recommendation

[Nick Sayer via time-nuts]

Lots of folks have chimed in on this thread, but I will just add that the Apple 
watch is an NTP client. I’m extremely happy with mine, but the reasons I am are 
far, far wider than its accuracy (which I can only judge by eye, which is an 
extraordinary low bar for a Time Nut).

> On Mar 4, 2018, at 10:38 PM, Don Murray via time-nuts  
> wrote:
> 
> Hello Time Nuts...
> 
> 
>  
> After 6 years of no troubles, in sync with WWV any
> hour of the day, flawless transfer between
> standard and daylight time my Stauer Titanium
> Atomic wristwatch bite the dust a year ago.
>  
> Since then, Stauer has sent me three replacements,
> each with some type of problem.  
>  
> So it looks as if I am in need of a new wristwatch,
> which will give me some kind of time accuracy.
>  
> So, Time Nuts...  any suggestions or recommendations?
>  
> TNX
>  
> 73
> Don
> W4WJ
> ___
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Re: [time-nuts] Need a Watch Recommendation

[William H. Fite]

And that is just my point--well, part of it, anyway--ultra-precise
measurement of time is profoundly important, and rightly the primary focus
of this group. But for the wrist, very, very few of us need pin-point
accuracy--though many seem to perceive that we do. My Tissot mechanical
chronograph is right now doing a fantastic job of timing the eggs I'm
boiling for my lunch.



On Monday, March 5, 2018, Larry McDavid  wrote:

> I really don't want a conductive metal-case watch on my arm. What I do
> want is a light-weight, thin watch with day, date and analog display with
> sweep second hand. Not digital... Ok, that may be old-fashioned but it
> suits me. I've never found a suitable wwvb watch.
>
> So, I opt for an inexpensive (<$50) Swatch. Very light-weight, thin,
> plastic case, plastic band, all non-conductive. And, externally-replaceable
> power button cell.
>
> Accuracy? Ok, not TimeNut accuracy but I find mine is accurate to 5
> seconds per month. And, the second hand is settable.
>
> I do carry an Android cell phone; its clock is always a few seconds off. I
> use an app, Sol Et Umbra, that reads the internal GPS clock for displayed
> time and it also displays the difference between NTP and the phone internal
> clock. This is a sundial design/interpretation app but it gives the time of
> local solar noon (sun meridian transit), a value I use rather often. It is
> written by a prominent sundial enthusiast, is free and has no
> advertisements; it does lots more, too.
>
> But, honestly, I usually just look at my analog Swatch!
>
> Larry W6FUB
>
>
> On 3/5/2018 7:45 AM, Jerry Hancock wrote:
>
>> An by the way, I also have a Tissot P-touch as a retirement gift from
>> IBM.  Got the watch, as they say.  I can say it is very accurate for a
>> non-disciplined watch if you wear it every day
>>
>
> --
> Best wishes,
>
> Larry McDavid W6FUB
> Anaheim, California  (SE of Los Angeles, near Disneyland)
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>


-- 
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when it deserves it.
--Mark Twain

We may be surprised at the people we find in heaven. God has a soft spot
for sinners. His standards are quite low.
--Desmond Tutu
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Re: [time-nuts] Need a Watch Recommendation

[Adrian Godwin]

Eurochron (I believe they're low-end brand of Junghams) make a plastic
DCF77 watch. 'Plastic' doesn't do it justice - although the one I had
eventually wore away, it was attractive and well made and lasted for
several years.

I think this is the WWVB equivalent.

http://www.radiocontrolledclock.com/ateuransporw4.html


On Mon, Mar 5, 2018 at 4:19 PM, Larry McDavid  wrote:

> I really don't want a conductive metal-case watch on my arm. What I do
> want is a light-weight, thin watch with day, date and analog display with
> sweep second hand. Not digital... Ok, that may be old-fashioned but it
> suits me. I've never found a suitable wwvb watch.
>
> So, I opt for an inexpensive (<$50) Swatch. Very light-weight, thin,
> plastic case, plastic band, all non-conductive. And, externally-replaceable
> power button cell.
>
> Accuracy? Ok, not TimeNut accuracy but I find mine is accurate to 5
> seconds per month. And, the second hand is settable.
>
> I do carry an Android cell phone; its clock is always a few seconds off. I
> use an app, Sol Et Umbra, that reads the internal GPS clock for displayed
> time and it also displays the difference between NTP and the phone internal
> clock. This is a sundial design/interpretation app but it gives the time of
> local solar noon (sun meridian transit), a value I use rather often. It is
> written by a prominent sundial enthusiast, is free and has no
> advertisements; it does lots more, too.
>
> But, honestly, I usually just look at my analog Swatch!
>
> Larry W6FUB
>
>
> On 3/5/2018 7:45 AM, Jerry Hancock wrote:
>
>> An by the way, I also have a Tissot P-touch as a retirement gift from
>> IBM.  Got the watch, as they say.  I can say it is very accurate for a
>> non-disciplined watch if you wear it every day
>>
>
> --
> Best wishes,
>
> Larry McDavid W6FUB
> Anaheim, California  (SE of Los Angeles, near Disneyland)
>
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Re: [time-nuts] Need a Watch Recommendation

[Larry McDavid]

I really don't want a conductive metal-case watch on my arm. What I do 
want is a light-weight, thin watch with day, date and analog display 
with sweep second hand. Not digital... Ok, that may be old-fashioned but 
it suits me. I've never found a suitable wwvb watch.


So, I opt for an inexpensive (<$50) Swatch. Very light-weight, thin, 
plastic case, plastic band, all non-conductive. And, 
externally-replaceable power button cell.


Accuracy? Ok, not TimeNut accuracy but I find mine is accurate to 5 
seconds per month. And, the second hand is settable.


I do carry an Android cell phone; its clock is always a few seconds off. 
I use an app, Sol Et Umbra, that reads the internal GPS clock for 
displayed time and it also displays the difference between NTP and the 
phone internal clock. This is a sundial design/interpretation app but it 
gives the time of local solar noon (sun meridian transit), a value I use 
rather often. It is written by a prominent sundial enthusiast, is free 
and has no advertisements; it does lots more, too.


But, honestly, I usually just look at my analog Swatch!

Larry W6FUB


On 3/5/2018 7:45 AM, Jerry Hancock wrote:

An by the way, I also have a Tissot P-touch as a retirement gift from IBM.  Got 
the watch, as they say.  I can say it is very accurate for a non-disciplined 
watch if you wear it every day


--
Best wishes,

Larry McDavid W6FUB
Anaheim, California  (SE of Los Angeles, near Disneyland)
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Re: [time-nuts] Need a Watch Recommendation

[Attila Kinali]

On Mon, 5 Mar 2018 07:45:51 -0800
Jerry Hancock  wrote:

> An by the way, I also have a Tissot P-touch as a retirement gift from IBM.  
> Got the watch, as they say.  I can say it is very accurate for a non-
> disciplined watch if you wear it every day.

Even if you do not wear it, it's very accurate. I guess they use
the internal termperature sensor to compensate the crystal. 
How they get to sub-ppm stability over half a year, I have no clue.
And this one is almost 20 years old.

Attila Kinali
-- 
It is upon moral qualities that a society is ultimately founded. All 
the prosperity and technological sophistication in the world is of no 
use without that foundation.
 -- Miss Matheson, The Diamond Age, Neil Stephenson
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Re: [time-nuts] Need a Watch Recommendation

[Jerry Hancock]

An by the way, I also have a Tissot P-touch as a retirement gift from IBM.  Got 
the watch, as they say.  I can say it is very accurate for a non-disciplined 
watch if you wear it every day.

Regards,

Jerry


Jerry Hancock
je...@hanler.com
(415) 215-3779

> On Mar 5, 2018, at 2:44 AM, Attila Kinali  wrote:
> 
> On Mon, 5 Mar 2018 01:38:06 -0500
> Don Murray via time-nuts  wrote:
> 
> 
>> So it looks as if I am in need of a new wristwatch,
>> which will give me some kind of time accuracy.
> 
> I've owned several Swatch and Tissot over the past decades,
> Growing up in Switzerland does that to you. :-)
> 
> I currently have a Tissot P-Touch (first generation) and
> a Swatch Irony in active use. Both are accurate enough
> that I only set them twice a year (DST switch) and they
> are usually off by less than 10s. Which is good enough
> for my needs as a wristwatch.
> 
> So I guess, go for any modern Swiss quartz watch :-)
> 
>   Attila Kinali
> 
> -- 
> It is upon moral qualities that a society is ultimately founded. All 
> the prosperity and technological sophistication in the world is of no 
> use without that foundation.
> -- Miss Matheson, The Diamond Age, Neil Stephenson
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Re: [time-nuts] Need a Watch Recommendation

[Jerry Hancock]

If you are into rugged, I have a casio atomic solar that special forces use…

I was able to tail-end a gov’t contract and got it for cheap.

aren’t we silly.

Regards,

Jerry


Jerry Hancock
je...@hanler.com
(415) 215-3779

> On Mar 4, 2018, at 10:38 PM, Don Murray via time-nuts  
> wrote:
> 
> Hello Time Nuts...
> 
> 
>  
> After 6 years of no troubles, in sync with WWV any
> hour of the day, flawless transfer between
> standard and daylight time my Stauer Titanium
> Atomic wristwatch bite the dust a year ago.
>  
> Since then, Stauer has sent me three replacements,
> each with some type of problem.  
>  
> So it looks as if I am in need of a new wristwatch,
> which will give me some kind of time accuracy.
>  
> So, Time Nuts...  any suggestions or recommendations?
>  
> TNX
>  
> 73
> Don
> W4WJ
> ___
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Re: [time-nuts] Need a Watch Recommendation

[William H. Fite]

For those of us whose time-nuttery extends into the fascinating world of
mechanical watches and clocks, the kind of accuracy usually discussed here
is not only impossible but essentially irrelevant (quelle horreur!). Our
interest is in the beauty and elegance of micromechanical devices that have
evolved over centuries. When I look down at one of the 25 or so
wristwatches in my small collection or up at the ten wall and floor clocks
in my home, I am seeing far more than merely the time. If all I want is the
time, I can always glance at my phone or go to the basement and fiddle with
one or another of the electronic devices there.

My oldest watch, a Waltham Model 57, has been running continuously for 150
years and still keeps time within a minute per day. Horology is about so
much more than crystals and resonances and Allen deviations.



On Monday, March 5, 2018, Gerhard Hoffmann  wrote:

>
>
> Am 05.03.2018 um 14:01 schrieb Bob kb8tq:
>
>> If you want to stick with WWV, the Citizen “Ecco Drive” (solar) WWVB
>>
> ECO-Drive
>
>> watches are a pretty good option. Until I caved in to the wonders of
>> a cell phone on my wrist, I used them for many years. Nothing to fuss
>> with. No battery to die on you. Always keeps the right time. Available
>> in titanium. The only drawback is the limited number of styles they
>> make it in. You may or may not see one you like the looks of.
>>
>>
> I second that. In Europe, it synchronizes to DCF77 and in
> Japan to Fukushima, if that should be operational again.
>
> I wonder how they make it, that it lives from just a few
> photons now & then, year after year.
>
> Gerhard
>
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-- 
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when it deserves it.
--Mark Twain

We may be surprised at the people we find in heaven. God has a soft spot
for sinners. His standards are quite low.
--Desmond Tutu
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Re: [time-nuts] Need a Watch Recommendation

[Gerhard Hoffmann]

Am 05.03.2018 um 14:01 schrieb Bob kb8tq:

If you want to stick with WWV, the Citizen “Ecco Drive” (solar) WWVB

ECO-Drive

watches are a pretty good option. Until I caved in to the wonders of
a cell phone on my wrist, I used them for many years. Nothing to fuss
with. No battery to die on you. Always keeps the right time. Available
in titanium. The only drawback is the limited number of styles they
make it in. You may or may not see one you like the looks of.



I second that. In Europe, it synchronizes to DCF77 and in
Japan to Fukushima, if that should be operational again.

I wonder how they make it, that it lives from just a few
photons now & then, year after year.

Gerhard

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Re: [time-nuts] Need a Watch Recommendation

[Bob kb8tq]

Hi


> On Mar 5, 2018, at 1:38 AM, Don Murray via time-nuts  
> wrote:
> 
> Hello Time Nuts...
> 
> 
>  
> After 6 years of no troubles, in sync with WWV any
> hour of the day, flawless transfer between
> standard and daylight time my Stauer Titanium
> Atomic wristwatch bite the dust a year ago.
>  
> Since then, Stauer has sent me three replacements,
> each with some type of problem.  
>  
> So it looks as if I am in need of a new wristwatch,
> which will give me some kind of time accuracy.
>  
> So, Time Nuts...  any suggestions or recommendations?

If you want to stick with WWV, the Citizen “Ecco Drive” (solar) WWVB 
watches are a pretty good option. Until I caved in to the wonders of
a cell phone on my wrist, I used them for many years. Nothing to fuss 
with. No battery to die on you. Always keeps the right time. Available 
in titanium. The only drawback is the limited number of styles they
make it in. You may or may not see one you like the looks of. 

Bob

>  
> TNX
>  
> 73
> Don
> W4WJ
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Re: [time-nuts] Need a Watch Recommendation

[Attila Kinali]

On Mon, 5 Mar 2018 01:38:06 -0500
Don Murray via time-nuts  wrote:


> So it looks as if I am in need of a new wristwatch,
> which will give me some kind of time accuracy.

I've owned several Swatch and Tissot over the past decades,
Growing up in Switzerland does that to you. :-)

I currently have a Tissot P-Touch (first generation) and
a Swatch Irony in active use. Both are accurate enough
that I only set them twice a year (DST switch) and they
are usually off by less than 10s. Which is good enough
for my needs as a wristwatch.

So I guess, go for any modern Swiss quartz watch :-)

Attila Kinali

-- 
It is upon moral qualities that a society is ultimately founded. All 
the prosperity and technological sophistication in the world is of no 
use without that foundation.
 -- Miss Matheson, The Diamond Age, Neil Stephenson
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Re: [time-nuts] Need a Watch Recommendation

[Bill Beam]

Even my pre civil war pocket watches should be good enough
for your needs.  Better than a minute/day.

But for some (many) time-nuts it's about wants, not needs.

My clocks and watches that can be heard across the room qualify
me as old school time nut.  (My DOB qualifies me as just plain old.)


On Mon, 5 Mar 2018 03:20:40 -0500, Don Murray via time-nuts wrote:

>Hi Bill...
>- 
>My Rolex GMT Master was stolen back in '75,
>so no luck on that. - Rolex is a bit pricey for
>my needs.
>- 
>My Seiko CQ001M, one of the first Seiko Digitals,
>was amazing. - Over the time I had it, it varied less
>than plus/minus 1 second against WWV. - I carried
>a Radio Shack Time Kube with me, when I was
>challeneged, as to the accuracy of that watch! - 
>It died many- years later, and the replacement 
>innards were- totally "loose!"
>- 
>Yes, I think that Time Kube qualifies me as a
>"Old School Time Nut! - ;-)
>- 
>TNX Bill.
>- 
>73
>Don
>W4WJ
>- 
>In a message dated 3/5/2018 1:31:04 AM Central Standard Time, wb...@gci.net 
>writes:

>- 
> My 37 year old Rolex day-date gains less than 2 sec/day compared to GPS clock.
>Rolex standard is +6/-2 sec/day.

>Regards, NL7F

>On Mon, 5 Mar 2018 01:38:06 -0500, Don Murray via time-nuts wrote:

>>Hello Time Nuts...


>>-n++
>>After 6 years of no troubles, in sync with WWV any
>>hour of the day, flawless transfer between
>>standard and daylight time my Stauer Titanium
>>Atomic wristwatch bite the dust a year ago.
>>-n++
>>Since then, Stauer has sent me three replacements,
>>each with some type of problem. -n++
>>-n++
>>So it looks as if I am in need of a new wristwatch,
>>which will give me some kind of time accuracy.
>>-n++
>>So, Time Nuts... -n++any suggestions or recommendations?
>>-n++
>>TNX
>>-n++
>>73
>>Don
>>W4WJ
>>___
>>time-nuts mailing list -- time-nuts@febo.com
>>To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>>and follow the instructions there.



>Bill Beam
>NL7F



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Bill Beam
NL7F



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Re: [time-nuts] Need a Watch Recommendation

[Bill S]

I wore a Casio "Atomic" watch and it set itself reliably for many years 
until very recently. They are still available.  I've replaced it with a 
Seiko Solar "Radio" watch which I understand has a better wwvb receiver 
in it. Haven't worn it yet so I'm not sure how it will perform but I've 
heard good comments.

Bill

On 3/5/2018 1:38 AM, Don Murray via time-nuts wrote:

Hello Time Nuts...


  
After 6 years of no troubles, in sync with WWV any

hour of the day, flawless transfer between
standard and daylight time my Stauer Titanium
Atomic wristwatch bite the dust a year ago.
  
Since then, Stauer has sent me three replacements,

each with some type of problem.
  
So it looks as if I am in need of a new wristwatch,

which will give me some kind of time accuracy.
  
So, Time Nuts...  any suggestions or recommendations?
  
TNX
  
73

Don
W4WJ
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.



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Re: [time-nuts] Need a Watch Recommendation

[Don Murray via time-nuts]

Hi Bill...
 
My Rolex GMT Master was stolen back in '75,
so no luck on that.  Rolex is a bit pricey for
my needs.
 
My Seiko CQ001M, one of the first Seiko Digitals,
was amazing.  Over the time I had it, it varied less
than plus/minus 1 second against WWV.  I carried
a Radio Shack Time Kube with me, when I was
challeneged, as to the accuracy of that watch!  
It died many years later, and the replacement 
innards were totally "loose!"
 
Yes, I think that Time Kube qualifies me as a
"Old School Time Nut!  ;-)
 
TNX Bill.
 
73
Don
W4WJ
 
In a message dated 3/5/2018 1:31:04 AM Central Standard Time, wb...@gci.net 
writes:

 
 My 37 year old Rolex day-date gains less than 2 sec/day compared to GPS clock.
Rolex standard is +6/-2 sec/day.

Regards, NL7F

On Mon, 5 Mar 2018 01:38:06 -0500, Don Murray via time-nuts wrote:

>Hello Time Nuts...


>-�
>After 6 years of no troubles, in sync with WWV any
>hour of the day, flawless transfer between
>standard and daylight time my Stauer Titanium
>Atomic wristwatch bite the dust a year ago.
>-�
>Since then, Stauer has sent me three replacements,
>each with some type of problem. -�
>-�
>So it looks as if I am in need of a new wristwatch,
>which will give me some kind of time accuracy.
>-�
>So, Time Nuts... -�any suggestions or recommendations?
>-�
>TNX
>-�
>73
>Don
>W4WJ
>___
>time-nuts mailing list -- time-nuts@febo.com
>To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>and follow the instructions there.



Bill Beam
NL7F



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Re: [time-nuts] Need a Watch Recommendation

[Bill Beam]

My 37 year old Rolex day-date gains less than 2 sec/day compared to GPS clock.
Rolex standard is +6/-2 sec/day.

Regards, NL7F

On Mon, 5 Mar 2018 01:38:06 -0500, Don Murray via time-nuts wrote:

>Hello Time Nuts...


>- 
>After 6 years of no troubles, in sync with WWV any
>hour of the day, flawless transfer between
>standard and daylight time my Stauer Titanium
>Atomic wristwatch bite the dust a year ago.
>- 
>Since then, Stauer has sent me three replacements,
>each with some type of problem. - 
>- 
>So it looks as if I am in need of a new wristwatch,
>which will give me some kind of time accuracy.
>- 
>So, Time Nuts... - any suggestions or recommendations?
>- 
>TNX
>- 
>73
>Don
>W4WJ
>___
>time-nuts mailing list -- time-nuts@febo.com
>To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>and follow the instructions there.



Bill Beam
NL7F



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[time-nuts] Need a Watch Recommendation

[Don Murray via time-nuts]

Hello Time Nuts...


 
After 6 years of no troubles, in sync with WWV any
hour of the day, flawless transfer between
standard and daylight time my Stauer Titanium
Atomic wristwatch bite the dust a year ago.
 
Since then, Stauer has sent me three replacements,
each with some type of problem.  
 
So it looks as if I am in need of a new wristwatch,
which will give me some kind of time accuracy.
 
So, Time Nuts...  any suggestions or recommendations?
 
TNX
 
73
Don
W4WJ
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