SEIKO Watch Repair

[bz]

"William Sommerwerck" <grizzledgeezer@comcast.net> wrote in
news:guc2vs$cd0$1@news.motzarella.org:

One of the Science channels on TV. They were trying to explain
how quartz timekeeping was achieved but made no specific
specifications on how the crystals were made for watches.
I thought it was a little odd myself being a amateur radio operator
for 20 years having used gear controlled by crystals before PLL
circuits.

Actually, PLL synthesizers /are/ quartz-controlled.

I believe watch crystals -- being so small /and/ having to work at very
low frequencies -- are cut quite differently from RF crystals. In fact,
I think some are cut like tuning forks. (Correct me if I'm wrong.)

You seem to be right http://www.absoluteastronomy.com/topics/Quartz_clock





--
bz 73 de N5BZ k

please pardon my infinite ignorance, the set-of-things-I-do-not-know is an
infinite set.

bz+ser@ch100-5.chem.lsu.edu remove ch100-5 to avoid spam trap