Hi!
There seems to be some kind of comeback going on with 80's style digital
watches. You may find replicas of some 80's models or even re-makes of
the original models from original manufacturer.
So I decided to get one. As a time-nut my primary goal was to have radio
controlled 'atomic' model. So I ended up to Casio Wave Ceptor
WV-59DE-1AVEF. There's many models available from basic digital models
like this to very nice ones with with full titanium body (analog style).
But because of the 80's is hot it had to be digital...
Wave Ceptors suport all time signals formats (US, UK/German and Japan)
and correct standard is automatically selected when home city is set.
One of the first things to do was to test the accuracy with radio
syncronization turned off. Correct time was fist set with DCF77. Then I
switched off the synconization. After beign about three days off there
was no significiant visible error on time. In the video we can see
however about one frame error, which means about 40 milliseconds. Still
that's pretty good result for wrist watch. Also, the syncronization will
occur once per day when the reception is good.
So the watch must be at least calibrated in the factory. Don't know if
the watch performs any kind of self-calibration according to radio
syncronization results, most likely not - but it would be technically
possible.
So far so good, it's accurate enough - at least as new. When
syncronization is turned on, there should never be visible error on time.
Here's my test video:
https://www.youtube.com/watch?v=_A23buFeHd0
--
73s!
Esa
OH4KJU
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