crown wheel

English

Noun

crown wheel (plural crown wheels)

1. In watchmaking, an object of circular shape with contrate teeth, which meshes with the winding pinion and with the ratchet-wheel on the barrel-arbor used to wind-up the watch, respectively, to set the time.

References

• https://web.archive.org/web/20061007075356/http://www.fhs.ch/en/glossary.php