Glossary

the number of vibrations performed by the hairspring per hour. Frequency is an important indicator of accuracy and performance in a watch. The higher the frequency, the greater the accuracy and stability in timekeeping. A higher frequency improves the watch's accuracy and reduces the impact of external factors on its movement. Conversely, a lower frequency reduces the accuracy of the watch and makes it more susceptible to external changes. The frequency of a watch is measured in hertz (Hz).

The frequency of a watch varies among different timepieces and depends on the internal movement of the watch. In automatic mechanical watches, the frequency typically ranges from 2.5 Hz to 5 Hz, which translates to 2.5 to 5 vibrations per second. On the other hand, in quartz watches, the frequency is very high and can range in the tens of thousands of hertz.