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Chronograph

A chronograph is a watch with a built-in stopwatch function, usually started, stopped, and reset with pushers on the side of the case.

Chronographs are among the most popular complications in the pre-owned market. They're also more complex to service than time-only watches, so a chronograph that doesn't start, stop, and reset cleanly can mean a significant repair.

Always test the chronograph fully at intake: start, stop, restart, and reset, checking that the hands return precisely to zero.

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