Ulysse Nardin UN32 / 33 complete barrel and ratchet

Ulysse Nardin

Founded in 1846 by Ulysse Nardin, Ulysse Nardin is a prestigious Swiss watch manufacturer celebrated for its highly accurate marine chronometers and pioneering innovations in silicon technology. The brand has a strong nautical heritage and a reputation for avant-garde horology. Famous models include the Marine Chronometer, the Freak, with its revolutionary carrousel movement, and the Executive Dual Time. Ulysse Nardin is a true manufacture, developing numerous in-house movements, such as the UN-118 and the UN-176 (for the Freak), known for their technical complexity and precision. It blends traditional craftsmanship with cutting-edge materials and concepts.

Ratchet

A ratchet is a toothed component used in the winding system of a mechanical watch, helping control the winding and release of mainspring power. It often works together with clicks, wheels, and springs to prevent unwanted reverse movement. Ratchets may be replaced when teeth are worn, broken, slipping, corroded, or causing problems with winding efficiency.