METHOD FOR DETERMINING AN IMBALANCE CHARACTERISTIC OF AN OSCILLATOR
    1.
    发明申请
    METHOD FOR DETERMINING AN IMBALANCE CHARACTERISTIC OF AN OSCILLATOR 审中-公开
    用于确定振荡器的不平衡特性的方法

    公开(公告)号:US20150338829A1

    公开(公告)日:2015-11-26

    申请号:US14411235

    申请日:2013-06-25

    Applicant: ROLEX SA

    Abstract: A method for determining an imbalance characteristic of a hairspring (5) balance (4) oscillator (3) of a timepiece movement (2), the method comprising at least the following steps: —Setting the hairspring balance oscillator in an oscillating motion at at least two amplitudes, —Determining, for each amplitude and for at least two positions of the oscillator, a piece of data representative of the oscillation period of the oscillator, —Using the data from the previous step to calculate the imbalance characteristic of the hairspring balance oscillator.

    Abstract translation: 一种用于确定钟表移动(2)的游丝(5)平衡(4)振荡器(3)的不平衡特性的方法,所述方法至少包括以下步骤: - 将游丝平衡振荡器设置在振荡运动 至少两个幅度, - 对振荡器的每个振幅和至少两个位置确定表示振荡器的振荡周期的一条数据, - 使用前一步骤的数据计算游丝平衡的不平衡特性 振荡器

    WATCH PIVOT DEVICE
    2.
    发明申请
    WATCH PIVOT DEVICE 审中-公开

    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

    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.

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