Glossary of watchmaking - Fondation de la Haute Horlogerie

Close

Filter by

or

43 results

Arbor

Arbre | 軸／ジク | 轴

A synonym of axle (barrel arbor). A toothed wheel is fixed to the arbor, which is usually...

Axle

Axe de balancier | 天真／テンシン | 轴

A pivoted steel arbor on which the balance is mounted.

Bearing

Coussinet | 軸受け／ジクウケ | 轴承

A hole made directly in the brass plate and in which a steel pivot, part of the greatrain or...

Block

Plot | ブロック | 垫块

In a lever escapement, the dart is fixed to a block at the base of the fork.

Bolt

Targette | ボルト | 按掣栓

A catch that can be operated from the outside of a watch case to trigger a mechanism, for example...

Bottom plate

Platine | 地板／ジイタ | 底板

The plate which bears the various movement parts and in particular the bridges. The dial is usually...

Bridge

Pont | 受け／ウケ | 夹板

A metal plate under which the pivots of the wheels and pinions turn. Both ends of the bridge are...

Cam

Came | カム | 凸轮

A part that is profiled to transform or modify motion. For example, a cam is used to reset the...

Catch

Ergot | キャッチ | 扣锁

A projection of a part, wheel or lever which generally hooks or throws into or out of motion.

Column wheel

Roue à colonnes | コラムホイール | 柱轮

The wheel which coordinates the start, stop and return to zero functions of the chronograph hand.In...