公开(公告)号：US20190033791A1

公开(公告)日：2019-01-31

申请号：US16047646

申请日：2018-07-27

Applicant: ROLEX SA

Inventor： Frédéric Burger ,  Vanessa Chauveau ,  Aziz Mbaye

IPC: G04B31/08 ,  G04B31/008

Abstract: Method of assembly of a watch pivot device (100) or a watch mechanism (200) or a watch movement (300) or a timepiece (400), the watch pivot device (100) or the watch mechanism (200) or the watch movement (300) or the timepiece (400) comprising a pivot (1) and a bearing (2), the method comprising the following stages: (i) supplying the pivot (1); (ii) supplying the bearing (2); (iii) applying, to at least one surface (101, 102, 211, 221) of the pivot and/or of the bearing, a lubricant of which the kinematic viscosity at a temperature of 20° C. is greater than 1.5 St; and (iv) positioning the pivot in the bearing.