Watch Database

    Mainspring

    For Seiko Y421-0020

    1.20 x 0.100 x 320 x 9.0 mm

    GR Reference #: GR2921

    Height (H): 1.2mm

    Thickness (T): 0.1mm

    Total Length (TL): 320mm

    Barrel Diameter (BD): 9mm

    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
    Buren 3734.25 x 10.5
    Citizen 4-G301601CITIZE CASE REFERENCE
    Citizen 4-313313CITIZEN CASE
    Seiko 7A38-727BSEIKO CASE REFERENCE
    Bulova 2604.50
    Benrus K61D21
    Bulova 2604.50
    Bulova C863098BULOVA CASE REFERENCE
    Omega 1718OMEGA CASE USES CALIBER 161
    Bulova C875104BULOVA CASE REFERENCE
    Bulova R346BULOVA CASE REFERENCE
    Bulova T3772ACCUTR CASE REFERENCE
    Buren 3734.25 x 10.5
    Citizen 33-6840CITIZE CASE REFERENCE
    Citizen 33-6840CITIZE CASE REFERENCE
    Citizen 36-2565CITIZE CASE REFERENCE
    Citizen 4-060237CITIZEN CASE
    Citizen 4-313313CITIZEN CASE
    Citizen 4-322487CITIZEN CASE
    Citizen 4-650409CITIZEN CASE
    Citizen 4-751833CITIZEN CASE
    Citizen 4-940776CITIZE CASE REFERENCE
    Citizen 4-F50123CITIZEN CASE
    Citizen 4-G01216CITIZEN CASE
    Citizen 4-G301601CITIZE CASE REFERENCE
    Citizen 4-H08975CITIZEN CASE
    Citizen 4-K02732CITIZEN CASE
    Citizen 4-S008387CITIZEN CASE REFERENCE
    Citizen 4-S11740CITIZEN CASE
    Citizen 4-Y52141CITIZEN CASE
    Citizen 4-Y64832CITIZEN CASE
    Citizen 70-0037CITIZEN CASE
    Cyma Tavannes 414KA10.5
    IWC 6210
    Langendorf 614811.5
    Omega 1718OMEGA CASE USES CALIBER 161
    Omega 191.755OMEGA CASE - USES CALIBER 1342
    Seiko A95
    Omega 196.0150OMEGA CASE USES CALIBER 1342
    Seiko 0703-6010SEIKO CASE REFERENCE
    Omega 196.244OMEGA CASE USES CALIBER 1425
    Citizen 4-940776CITIZE CASE REFERENCE
    Omega 468.0000OMEGA CASE USES CALIBER 561
    Omega 611.008OMEGA CASE USES CALIBER 483
    Pulsar V313QUARTZ ANALOG DSS CALD DAY DTE6.75 x 8
    Puw 2431QUARTZ ANALOG DSS CALD DAY DATE10.5
    Seiko 0703-6010SEIKO CASE REFERENCE
    Seiko 1220-5360SEIKO CASE REFERENCE COSERVE 2003/2004
    Seiko 3863-8000SEIKO CASE REFERENCE
    Seiko 4N00-5199SEIKO CASE REFERENCE
    Bulova 2604.50
    Seiko 6119-855ASEIKO CASE REFERENCE
    Pulsar V313QUARTZ ANALOG DSS CALD DAY DTE6.75 x 8
    Seiko 6206-8120SEIKO CASE REFERENCE
    Seiko 7009-529CSEIKO CASE REFERENCE
    Seiko 7A38-727BSEIKO CASE REFERENCE
    Seiko Y588-005BSEIKO CASE REFERENCE COSERVE 2003/2004
    Seiko 9531-5020SEIKO CASE REFERENCE
    Seiko A95
    Seiko V145-X010
    Seiko Y588-005BSEIKO CASE REFERENCE COSERVE 2003/2004

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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 #
    Gruen 1151.10 (1.20) x 0.105 (0.100) x 265 (320) x 8.5 (9.0) mm
    Gruen 1161.10 (1.20) x 0.105 (0.100) x 265 (320) x 8.5 (9.0) mm
    Gruen 1171.10 (1.20) x 0.105 (0.100) x 265 (320) x 8.5 (9.0) mm
    Gruen 1191.10 (1.20) x 0.105 (0.100) x 265 (320) x 8.5 (9.0) mm
    Gruen 1191.10 (1.20) x 0.105 (0.100) x 265 (320) x 8.5 (9.0) mm
    Gruen 1231.10 (1.20) x 0.105 (0.100) x 265 (320) x 8.5 (9.0) mm

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