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Thread: Omega Seamaster caseback size

  1. #1

    Omega Seamaster caseback size

    As per the title, can someone advise me of the caseback diameter of an Omega Seamaster 212.30.41.61.01.001
    So I can get the right opener to replace the battery please?

    R
    Ignorance breeds Fear. Fear breeds Hatred. Hatred breeds Ignorance. Break the chain.

  2. #2
    Anyone?

    R
    Ignorance breeds Fear. Fear breeds Hatred. Hatred breeds Ignorance. Break the chain.

  3. #3
    Craftsman
    Join Date
    Jul 2018
    Location
    UK
    Posts
    256
    As seamaster casebacks have slots, can an opener with adjustable screw-heads not be used? With 3 screws, should be able to adjust to fit to 3 slots on the caseback?

  4. #4
    Grand Master
    Join Date
    Jul 2007
    Location
    Wakefield, West Yorkshire
    Posts
    22,508
    I use a Jaxa tool on Omega casebacks, clamping the watch securely to safeguard against slippage. 3 points of contact is sufficient, and the casebacks don`t need overtightening to effect a proper seal.

  5. #5
    The problem as I see it is the 3-points are not equilateral:



    Can a Jaxa adjust enough to take that into account?

    R
    Ignorance breeds Fear. Fear breeds Hatred. Hatred breeds Ignorance. Break the chain.

  6. #6
    Grand Master
    Join Date
    Jul 2007
    Location
    Wakefield, West Yorkshire
    Posts
    22,508
    True, but a Jaxa tool can be adjusted to fit, the points don`t need to be equilateral.

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