Watch Database

    Mainspring

    For Seiko 8420-7760

    1.60 x 0.080 x 260 x 7.0 mm

    GR Reference #: GR4446

    Height (H): 1.6mm

    Thickness (T): 0.08mm

    Total Length (TL): 260mm

    Barrel Diameter (BD): 7mm

    End Type: Manual

    To look for similar mainsprings that exactly match a specific dimension, select it from the links above.

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    Movement Listing

    This mainspring is used by the following movements:

    MovementDescriptionLigne
    Adec 2038QUARTZ-ANALOG-DSS-ONE AND TWO JEWELS6.75 x 8
    Seiko V251-5400
    Baumgartner 41430 MIS TIMER PIN LEVER CENTRAL RESITER20
    Citizen 4-073738CITIZEN CASE
    Bulova C7434-1CARAVE CASE REFERENCE
    Bulova C8461-4BULOVA CASE REFERENCE
    Bulova C850010BULOVA CASE REFERENCE
    Certina 23-2010.5
    Citizen 21-5201CITIZE CASE REFERENCE
    Seiko 1100-7669
    Citizen 32-1320CITIZE CASE REFERENCE
    Longines 9228LONGIN CASE REFERENCE
    Citizen 33-1031CITIZE CASE REFERENCE
    Citizen 36-4983CITIZE CASE REFERENCE
    Citizen 36-7176CITIZE CASE REFERENCE
    Citizen 4-364341CITIZEN CASE
    Citizen 38-0431CITIZE CASE REFERENCE
    Citizen 4-073738CITIZEN CASE
    Citizen 4-108370CITIZE CASE REFERENCE
    Citizen 4-073738CITIZEN CASE
    Citizen 4-151518CITIZEN CASE
    Citizen 4-320701CITIZEN CASE
    Citizen 4-325346CITIZEN CASE
    Citizen 4-364341CITIZEN CASE
    Citizen 4-601301CITIZEN CASE
    Citizen 4-S24264CITIZE CASE REFERENCE
    Citizen 4-682157CITIZEN CASE
    Citizen 4-722400CITIZEN CASE
    Citizen 4-797841CITIZEN CASE
    Citizen 4-799780CITIZEN CASE
    Citizen 4-860951CITIZEN CASE
    Concord 318
    Citizen 4-940792CITIZE CASE REFERENCE
    Citizen 4-955307CITIZEN CASE
    Omega 19075OMEGA CASE USES CALIBER 552
    Citizen 4-E60175CITIZEN CASE
    Seiko 7009-5961SEIKO CASE REFERENCE
    Citizen 4-F62024CITIZEN CASE
    Citizen 4-F62211CITIZEN CASE
    Citizen 4-G05581CITIZEN CASE
    Seiko 1004-0180SEIKO CASE REFERENCE
    Citizen 4-H02713CITIZEN CASE
    Citizen 4-601301CITIZEN CASE
    Citizen 4-K00047CITIZEN CASE
    Citizen 4-L10187CITIZEN CASE
    Citizen 4-S24264CITIZE CASE REFERENCE
    Seiko V348-8000PULSAR CASE REFERENCE
    Citizen 4-S44460CITIZEN CASE
    Citizen 4-S55429CITIZEN CASE
    Citizen 4-Y59260CITIZEN CASE
    Citizen 50-5030CITIZE CASE REFERENCE
    Citizen 64-4862CITIZE CASE REFERENCE
    Citizen 4-601301CITIZEN CASE
    Citizen 99-1635CITIZE CASE REFERENCE
    Citizen 4-S55429CITIZEN CASE
    Citizen AF-3032CITIZE CASE REFERENCE
    Concord 318
    Dugena GENERAL831GENERAL 831
    Fleurier 90-93-958.75
    Longines 9228LONGIN CASE REFERENCE
    Omega 1319OMEGA CASE REFERENCE
    Omega 18184OMEGA CASE USES CALIBER 440
    Omega 19075OMEGA CASE USES CALIBER 552
    Omega 196.0013OMEGA CASE USES CALIBER 1510
    Omega 2398OMEGA CALIBER CASE USES 330/332
    Omega 3624OMEGA CASE USES CALIBER 240
    Omega 391.836OMEGA CASE USES CALIBER 1387
    Omega 591.104OMEGA CASE USE CALIBER 1352
    Omega 7179OMEGA CASE USES CALIBER 620
    Roamer 800SHOCK ADJ STUD HOLDER6.75 x 8
    Rolex 1035-8ROLEX CASE REFERENCE
    Ronda 2538BPH 21JL INCA DSS AUTO CALD11.5
    Seiko 1004-0180SEIKO CASE REFERENCE
    Seiko 1004-0250SEIKO CASE REFERENCE
    Seiko 1100-7669
    Seiko 1400-7208SEIKO CASE REFERENCE
    Seiko 1E20-5850SEIKO CASE REFERENCE
    Seiko 1N00-6K60SEIKO CASE REFERENCE COSERVE 2003/2004
    Seiko 2621-0040SEIKO CASE REFERENCE
    Seiko 2906-0640SEIKO CASE REFERENCE
    Seiko 2E20-5450SEIKO CASE REFERENCE
    Seiko 5E29-F040SEIKO CASE
    Seiko 5E30-6A00SEIKO CASE REFERENCE COSERVE 2003/2004
    Seiko 5Y32-5150SEIKO CASE 08/12/98
    Seiko 6206-8000SEIKO CASE REFERENCE
    Seiko 6220C21 JL DSS11.5
    Seiko 7009-5961SEIKO CASE REFERENCE
    Seiko 7N01-0BY0SEIKO CASE REFERENCE COSERVE 2003/2004
    Seiko 7N07-001ASEIKO CASE REFERENCE COSERVE 2003/2004
    Seiko 7N35-600ASEIKO CASE REFERENCE COSERVE 2003/2004
    Seiko 7T11-0AG0SEIKO CASE REFERENCE COSERVE 2005
    Seiko 8M32-600DSEIKO CASE 08/12/98
    Seiko V220-6680
    Seiko V251-5400
    Seiko V348-8000PULSAR CASE REFERENCE

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    Similar Mainspring Listing

    This mainspring is similar to that used by the following movements. When values differ the exact value is shown brackets for reference:

    MovementMainspringGR Reference #
    Certina 3401.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Certina 340T1.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Certina 340T1.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Oris 4511.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Oris 4511.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Oris 4521.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Oris 4531.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Oris 4541.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Oris 4561.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Oris 4571.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Oris 4581.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Oris 4581.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Precimax 2501.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Precimax 250SC1.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Precimax 4001.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Precimax 4001.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm
    Precimax 4501.55 (1.60) x 0.100 (0.080) x 250 (260) x 8.5 (7.0) mm

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