Zenith El Primero poussoir Rainbow Zhp0025/02.0370.400

Zenith

Zenith is a Swiss watch brand founded in 1865, known for precision movements, chronographs, and the legendary El Primero automatic chronograph calibre. The brand has produced many respected models across dress, sports, and aviation-inspired collections. Zenith watches are appreciated by collectors and enthusiasts for their technical innovation, high-frequency movements, and important role in Swiss chronograph history.

Pusher

A pusher is an external button on a watch case used to operate functions such as chronograph start, stop, reset, date correction, alarm setting, or other complications. Pushers must fit correctly to the case and internal mechanism to work reliably. They are commonly replaced when worn, damaged, missing, stuck, or no longer sealing properly.