Glossary of watchmaking

Oil sink

A cavity in bearings for a drop of oil.

Terms with the same letter

Observatory chronometer Official rating certificate Oignon (watch) Oil sink Oiling Onyx Opale Opaque Organic Orient Ornamental gems Oscillating pinion Oscillating weight (Rotor) Oscillation Oscillator Oval

L L

A rigid part that rocks on a resting point. In watches, certain levers command a function or set a position.

A polished precious or fine stone cut into a dome and without facets. Used to decorate a watch dial and sometimes the crown.