Patent · US Expired

Timepiece comprising a rotatable bezel

US5321670A · kind A · utility

6Cited by

1References

12Claims

0Family size

Assignee

Eta SA Fabriques d'Ebauches · CH

Inventors

Jean-Philippe Rebeaud · Murten, CH
Beat Gilomen · Grenchen, CH

Key dates

Filing date	Apr 28, 1993
Grant date	Jun 14, 1994
Priority date	—
Expiry date	Apr 28, 2013

Classification

Technology area (CPC G)Physics
CPC primaryG04B37/081
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A timepiece includes a case (2), a crystal (10) fixedly mounted on the case (2) and a rotatable bezel (16) guided in rotation relative to the crystal (10) and said case (2), said bezel (16) furthermore being associated with a ratchet mechanism (M) and is characterized in that said bezel (16) includes sealing means (36, 40) against solid impurities, such means being intended to isolate at least the ratchet mechanism (M) from the exterior and to prevent solid impurities from becoming embedded at least between said bezel (16) and the crystal (10) and in that it additionally includes means (24, 44) enabling the driving of such impurities towards the exterior of the timepiece.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.