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This De Ville Co−axial Rattrapante has three pushers in addition to the crown
© Omega

A pusher (also called a push piece or button) is used to activate an internal function in a watch, typically a chronograph.

Most watches use a crown to control timekeeping functions, but many other complications are activated by other means. In chronograph watches, a “pusher” is the most common control mechanism. Typically extending out of the case at 2 00 and 4 00, the pushers start, stop, and reset the chronograph timing function. Some chronographs include another pusher to control a rattrapante hand, while other “monopusher” models use a single pusher co-axial with the crown. Bullhead models feature pushers at 11 00 and 1 00.

There are different styles of pushers Some extend far out from the case (“pump pushers”), while others sit nearly flush or are shaped to integrate with the case or crown guards. Some watches are known for unusual pushers, including the 1980s Seiko Giugiaro chronographs which had cam-activated pushers extending far outside the case.

Note that flush or inset buttons are usually called correctors, since they are typically used to correct the functions of a complication such as a perpetual calendar.

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pusher.txt · Last modified: 11.10.2021 17:01 (external edit)

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