Glossary of watchmaking


Isochronisme | 等時性/トウジセイ | 等时性

The property of being isochronal.

The science of timing lies in achieving isochronism of the regulating organ of a timekeeping instrument. The principal factors that can impair a balance's isochronism are the escapement, incorrect poising of the balance and spring, play between the curb pins and the balance spring, centrifugal force and magnetic fields.