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

I I

An inclusion is a particle of foreign matter found within a gemstone. Inclusions can be another mineral, a liquid or a gas. Inclusions decrease...

A table, published annually, showing the positions of the stars and planets.