The ability of a watch to prevent water from entering the case when submerged. A water-resistance rating is usually measured in feet or metres (water resistant to 100 metres, for example).
A large gear in a watch movement. The small gears that they mesh with are pinions.
An alloy of gold and at least one white metal (commonly nickel or silver), resulting in a deep silver colour.
A watch that can indicate time around the world, specifying 24 different cities (time zones) for frequent world travelers.
A watch with a strap or bracelet that’s worn on the wrist, popularized in the early 20th century as a pocket watch replacement.
