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Zeon Watch IN7901 CALIBRE 417 Operation manual (1 pages)
Calibre 417 Mechanical Movement Operation Manual A Mechanical watch is a device for keeping time, which uses the energy from a wound spring, and keeps time through the highly regulated release of that energy through a set of gears (the wheel train) and an escapement. It differs from typical quartz watch in that it uses purely mechanical components to keep …
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