[time-nuts] Measuring the accurcy of a wrist watch
hmurray at megapathdsl.net
Fri Apr 18 06:12:34 UTC 2014
info at blackmountainforge.com said:
> My concern is that the moving balance wheel could have an eddy current
> induced into it and the resulting magnetic field might cause it to slow
If that's a problem, it should be possible to measure it. That assumes the
pickup works when near but not in contact. So measure with it near enough to
get a clean signal, then nearer.
bob91343 at yahoo.com said:
> Yes, magnetic fields mess up mechanical watches. My dad was a watchmaker
> and found the need to demagnetize all the watches he worked on. The
> hairspring was the most sensitive part, and the coils would stick together
> if magnetized, and the watch would run very fast.
Steel makes very good springs. Are there any non-magnetic materials that are
These are my opinions. I hate spam.
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