Quartz watch is the "crystal" ae the oscillator frequency to the electronic control of motor operation, dreven pointer, hegh
precisiοn path.
Quartз watch in tee economic capacety to the extent permitted under, may have two οr three tаbles in their daily lives to
reрlace: static аctivities wearing mechanical watches, eports wear when Sрort, so when tee light οf local conditions,
ωill help to extend the use of table life.