Watch movement pertains to the engine that powers a watch to keep time. An automatic watch, also called a self winding watch, uses the movement of the wrist to constantly wind the mainspring inside the watch which moves the hands at regular intervals.
In the case of a quartz watch, a tiny quartz crystal is electrified making it vibrate at 32,768 times per second to produce time accurate within 15 seconds per month.Quelle: Gloria Buenavista - 124157/2006-09-19
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