Many people talk about it, some wear one - but only a few know exactly what the term ‘chronometer’ means. Is it just a fancy name for a watch? Or is there more to it than that? The answer: Yes, much more!
A chronometer is not just any watch, but a high-precision timekeeping instrument that has passed an official test. Only watches that successfully pass this stringent test can actually call themselves ‘chronometers’.
And who checks the whole thing? In Switzerland, for example, it is the renowned COSC (Contrôle Officiel Suisse des Chronomètres). There, each watch is tested over several days in different positions and at different temperatures.
For a watch to be certified as a chronometer, it must only have very small rate deviations - usually less than -4 to +6 seconds per day. This may not sound like much, but in the world of mechanics it is a truly outstanding value.
Chronometers therefore stand for:
- Highest precision
- Quality and reliability
- The art of watchmaking at a high level
The terms are often confused - but they refer to completely different things:
- A chronograph is a watch with a stopwatch function.
- A chronometer is a watch with tested accuracy.
A watch can therefore be both a chronograph and a chronometer - but one has nothing to do with the other.
When you wear a watch with a chronometer certificate, you are not just wearing a piece of technology, but a genuine seal of quality. Chronometers show that precision and craftsmanship are no coincidence - but the result of decades of experience and attention to detail.
You can find out more about everything to do with watches in our specialised literature.