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    ELECTRONIC CIRCUIT UNIT

    721/309

    Alternate: 721/309

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    Movement Listing

    This part is also used by the following movements:

    MovementDescriptionLigne
    Citizen 4-610121CITIZEN CASE
    Citizen D131QUARTZ DIGITAL CALD TIMER ALARM
    Fleurier 19310.5
    Omega 6124OMEGA CASE USES CALIBER 321
    Seiko Y131-8000LORUS CASE REFERENCE
    Seiko Y563-8139PULSAR CASE REFERENCE

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