Arogno 152 sliding pinion 407

Arogno

Arogno is a historic watch name associated with Swiss watchmaking, particularly vintage mechanical wristwatches from the mid-20th century. The brand is known for classic, understated designs that reflect the practical and elegant style of traditional Swiss watches of its era. Arogno watches are appreciated by collectors and enthusiasts for their vintage character, mechanical simplicity, and connection to the broader heritage of Swiss watch production.

Pinion

A pinion is a small toothed gear component used throughout a watch movement to transfer motion and power between wheels. Pinions are essential for the gear train, winding system, setting mechanism, and other functions. They may be replaced when teeth, pivots, leaves, or friction surfaces are worn, broken, corroded, or causing poor movement performance.