Mechanical Watches
A mechanical watch is a watch that uses a non-electric mechanism to measure the passage of time. They are driven by a spring (called a mainspring) which must be wound periodically, and releases the energy to turn the clock's wheels as it unwinds. They keep time with a balance wheel, which oscillates back and forth at a constant rate, and make a 'ticking' sound when operating. Mechanical watches evolved in Europe in the 1600s from spring powered clocks, which appeared in the 1400s.
Mechanical watches are not as accurate as modern quartz watches and are generally more expensive. They are now kept more for their aesthetic qualities and as jewelry than for their timekeeping ability.
More on Mechanical Watches:
3345, Watches Australia.
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