What Does Chronometer Mean?

A chronometer is a specific type of mechanical timepiece. In Switzerland, only timepieces certified by the Contrôle Officiel Suisse des Chronomètres may use the word certified chronometer or officially certified chronometer on them.

What does chronometer mean on a watch?

The watch world is full of jargon that's tough to understand. Chronometer might sound like a mouthful, but it's just a fancy word for "really, really precise watch." The word chronometer goes back to the early eighteenth century, when an English clockmaker called Jeremy Thacker invented a vacuum-sealed clock.

What is the difference between a chronograph and chronometer?

In short, a chronograph is a complication to measure short periods of time and a chronometer is a high-precision watch, certified by an official organisation. They are different but not antagonist concepts.