WMT
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M
Mechanical Movement
A movement based on a mainspring which is wound by hand. When wound it slowly unwinds the spring in an…
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M
Marine Chronometer
Highly accurate mechanical timekeeper used for determining the longitude on board a ship.
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Manufacture
A watch company that uses a movement in at least one of its models that it has manufactured itself on…
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Jumping Hour
Refers to a mechanical or quartz watch with an unconventional layout for the hour hand. Whilst the minute and second…
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Incabloc
A popular device for protecting the delicate components of a mechanical watch mechanism from impact by acting as a type…
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Horology
The science of time measurement including the art of designing and constructing timepieces.
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Hallmark
An engraved mark on the back of gold watches which prove that the material used is genuine gold.
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Gear Train
The interconnected system of gears and pinions which transmit power from the mainspring to the escapement.
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ETA
One of the leading manufacturers of watch movements based in Switzerland, used by many major Swiss brands.
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D
Deployment Buckle
A three-folding enclosure which secures the two ends of the bracelet and allows enough room for placing the watch on…
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C
Countdown Timer
A function that lets the wearer keep track of how much of a preset period of time has elapsed.
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COSC
The Control Officiel Suisse de Chronometers, an independent regulatory council in Switzerland that tests and certifies watch movements for chronometer…
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Carrousel
This device was invented by a Danish watchmaker and is similar to a tourbillon.
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Calendar
A watch feature that shows the date and sometimes, the day of the week and the month. It can be…
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B
Balance Wheel
The regulating organ of the watch, vibrating on a spiral hairspring. Lengthening or shortening the balance-spring makes the balance-wheel go…
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