Quote:
Originally Posted by Renate
360 Hz
The Seiko Quartz-Astron 35SQ ran at 8192 (2^13) Hz.
Since then 32768 (2^15) Hz has become the standard even for computer clocks.
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And the very miniature quartz crystals such as 32768Hz may be tuning fork shaped? Not sure.
But some watches with metal backs keep better time on the inside of your wrist and always worn, if adjusted for the remote 37°C "oven".
Though TCXOs are now nearly as good as ovened XO. I have some of both.