Valjoux 23/72 yoke 435

Valjoux

Valjoux is a historic Swiss movement manufacturer best known for its legendary mechanical chronograph calibres. Founded in the early 20th century in the Vallée de Joux, Valjoux produced reliable and widely used movements for many respected watch brands, including Heuer, Breitling, Rolex, Omega, and many others. Its calibres, such as the Valjoux 72 and Valjoux 7750, are admired for their durability, serviceability, and important role in the development of modern chronograph watches.

Yoke

The yoke is part of the keyless works in a watch movement and helps shift the sliding pinion between winding and hand-setting positions. It works together with the setting lever, stem, and clutch components to control crown functions. Yokes are commonly replaced when worn, bent, broken, or causing issues with winding, time-setting, or crown position changes.