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Water Resistent or Waterproof, Wheel, Winding Stem, Window, World Time
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Water Resistent or Waterproof
A watch whose case is designed in such a way as to resist infiltration by water (3 atmospheres, corresponding to a conventional depth of 30 meters; 5 atmospheres, corresponding to a conventional depth of 50 meters.) |
Wheel
Circular element, mostly toothed, combines with an arbor and a pinion to make up a gear. Wheels are normally made of brass, while arbors and pinions are made of steel. The wheels between barrel and escapement make up the so-called train. |
Winding Stem
Element transmitting motion from the crown to the gears governing manual winding and setting. |
Window
Aperture in the dial, that allows reading the underlying indication, mainly the date, but also indications concerning a second zone's time or jumping hour. |
World Time
Additional feature of watches provided with a GMT function, displaying the 24 time zones on the dial or bezel, each zone referenced by a city name, providing instantaneous reading of the time of any country. |
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