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The earliest known example of a clockwork set-up is the Antikythera mechanism.This device functioned as a geared analogue computer after its creation during the first-century BCE timeframe, being somewhat astrolabe-like, and had been designed for calculating astronomical positions and particularly listing eclipses.
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The hand-winding movement of a Russian watch. A mechanical watch is a watch that uses a clockwork mechanism to measure the passage of time, as opposed to quartz watches which function using the vibration modes of a piezoelectric quartz tuning fork, or radio watches, which are quartz watches synchronized to an atomic clock via radio waves.
Finally, any auctioned watch without public online records from auctioneers (e.g. major auction houses) will not be included in the ranking. As of December 2022, the most expensive watch (and wristwatch ) ever sold at auction is the Patek Philippe Grandmaster Chime Ref. 6300A-010, fetching US$31.19 million (31,000,000 CHF ) in Geneva on 9 ...
A watch band or bracelet is added to form a wristwatch; alternatively, a watch chain is added to form a pocket watch. [44] The case is the outer covering of the watch. The case back is the back portion of the watch's case. Accessing the movement (such as during battery replacement) depends on the type of case back, which are generally ...
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