Glossary

A vital mechanical component found within a watch movement and is utilized in the intricate mechanism of a chronograph. Its function revolves around enabling the start, stop, and reset functions of the chronograph's seconds hand. The oscillating pinion acts as an intermediary between the crown or pusher and the chronograph mechanism, facilitating the transfer of rotational motion. When activated, it engages with a corresponding wheel, allowing the chronograph seconds hand to rotate and accurately measure elapsed time. Conversely, when the chronograph is stopped or reset, the oscillating pinion disengages from the wheel, halting the movement of the hand.