How do perpetual motion watches work?
yodasminion asked:
I was just looking at Rolex watches, and they have the self-winding mechanisms. How do those work? I know it’s movement that winds the watch, but is there a spring inside, or a bettery that gets charged, or what?
I was just looking at Rolex watches, and they have the self-winding mechanisms. How do those work? I know it’s movement that winds the watch, but is there a spring inside, or a bettery that gets charged, or what?
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