Patent ID: 8096703

Claim:
A timepiece including: a rotating bezel; a middle part, wherein the rotating bezel is able to be driven in rotation relative to the middle part; wherein the bezel and the middle part defines an annular chamber that communicates with the exterior of the timepiece via a gap, wherein the annular chamber is disposed between the bezel and the middle part; a sealing gasket with a U-shaped profile that is arranged in the annular chamber so as to make water resistant an assembly formed by the bezel and the middle part, wherein the sealing gasket has two lips, wherein the two lips include a free lip and a second lip, wherein the free lip has a return at a free end of the free lip; and a compression member exerting a compressive effort on the two lips of the sealing gasket so that the two lips are pressed respectively against the bezel and against the middle part, wherein the compression member is housed inside the gasket, and wherein the compression member has a smooth external surface, wherein the compression member is an O-ring type joint and, in a compressed position, the second lip is partially bent underneath the compression member.