The accuracy of 32 kHz-based quartz wristwatches with analog hands can easily be measured with magnetic pick-up. Even if the 32 kHz acoustic or EM field is too low to sense, the tiny 1 Hz stepper motor creates a large sharp spike, which is much easier to detect. Here's an example from my watch: http://www.leapsecond.com/pages/Junghans/
For those of you interested in timing mechanical clocks or watches, a wonderful site to visit is: http://www.bmumford.com/microset.html /tvb _______________________________________________ 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.
