Fellow time-nuts. Over in another part of the internet is a group of people who love their Casio G-Shock watches. These digital watches have been around for decades and are built very well.
The one I own is an "atomic" and solar model (i.e. no battery replacement). However being in Tasmania, I cannot receive the low frequency time signals. When I first received the watch it's accuracy was excellent. Under 10 seconds a year. I even posted on here about it. Since then though it has drifted somewhat. After a ton of internet searching on how to open the case and how to adjust these watches (this is non trivial as the models are all very different and no instructions existed for this model - the GW-810D) I have finally cracked it. Interestingly, the module has a pad that gives off a stepped square wave at 32768/48 Hz. So with well calibrated equipment (which we all have of course) it is trivial to adjust the trimmer to put the watch back to decent accuracy. Using the smallest adjustment of the trimmer that I could muster I could get it down to about 0.5 in 10^6 or 1 second in around 20 days. Not as good as when I got it - but I was probably just lucky. Over in mygshock.com they struggle with this sort of timing stuff - whereas my big deal was opening the case! Just posting in this in case anyone here is interesting in adjusting their G-Shock. Jim _______________________________________________ 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.
