Watch Database

    Balance Staff

    For Seiko 2M21-0020

    Ronda #3142

    A: 3.22mm

    B: 1.69mm

    C: 0.85mm

    D: 0.37mm

    E: 0.55mm

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    Movement Listing

    This balance staff is used by the following movements:

    MovementShock SystemDescription
    Elgin GRD 997SupershockSEE AS 1902/3
    Citizen 4-062604SupershockCITIZEN CASE
    Citizen 1S02Supershock

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