Glossary

Caliber, is a term that describes the engine of a mechanical watch, through a reference number for each watch, and this number indicates the size and shape of the watch movement, and is also used to identify the origin of the watch or its maker.

Each watch manufacturer or brand typically has its own set of calibers, which may vary in terms of design, complexity, and features.

Calibers can be categorized into different types, such as manual-winding calibers that require manual winding of the crown to keep the watch running, or automatic calibers that use a rotor to automatically wind the mainspring through the movement of the wearer's wrist. There are also quartz calibers, which are powered by a battery and utilize electronic circuits to regulate timekeeping.

The caliber number or code is often assigned by the manufacturer to identify a particular movement or model. It helps watchmakers, collectors, and enthusiasts differentiate between different watch models and understand the technical specifications and features of a specific watch.