[time-nuts] RE; New Wrist watch

[Tom Van Baak]

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