Watch Database

    Mainspring

    For Hamilton 661

    1.20 x 0.100 x 315 x 9.5 mm

    Height (H): 1.2mm

    Thickness (T): 0.1mm

    Total Length (TL): 315mm

    Barrel Diameter (BD): 9.5mm

    End Type: Auto

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

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    GR Approximation

    This mainspring does not have a GR reference. The following GR mainsprings are the closest fit, when values differ the exact value is shown brackets for reference:

    GR Reference #MainspringBuy
    GR2904X1.20 x 0.095 (0.100) x 320 (315) x 9.5 mm
    Buy mainspring
    GR2922X1.20 x 0.100 x 340 (315) x 9.5 mm
    Buy mainspring
    GR2920X1.20 x 0.100 x 300 (315) x 9.0 (9.5) mm
    Buy mainspring
    GR2936X1.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    GR2922X1.20 x 0.100 x 340 (315) x 10.0 (9.5) mm
    Buy mainspring

    Movement Listing

    This mainspring is used by the following movements:

    MovementDescriptionLigne
    Seiko 7546-841ESEIKO CASE REFERENCE
    A. Schild 101718,000 BPH5.25 x 6.25
    Oris 394PIN LEVER-CALENDAR-DIRECT CENTER SECOND11.5
    A. Schild 1479AUTOMATIC-RESERVE-INDICATOR-DIRECT CENTER SECOND11.5
    Bulova C151BULOVA 5AN
    Bulova C8671069BULOVA CASE REFERENCE
    Citizen 4-231198CITIZEN CASE
    Citizen 4-798449CITIZEN CASE
    Citizen 4-823605CITIZEN CASE
    Citizen 4-980981CITIZEN CASE
    Citizen 4-C80240CITIZEN CASE
    Citizen 4-E51095CITIZEN CASE
    Citizen 4-G12510CITIZEN CASE
    Citizen 4-S50222CITIZEN CASE
    Citizen 47-8814CITIZE CASE REFERENCE
    Citizen 81-7392CITIZE CASE REFERENCE
    Elgin 832A19JL AMERICAN
    Fontainemelon 18.518.5
    Mido 8712MIDO CASE REFERENCE
    Omega 795.805OMEGA CASE USES CALIBER 1350
    Oris 394PIN LEVER-CALENDAR-DIRECT CENTER SECOND11.5
    Rolex 6429ROLEX CASE REFERENCE
    Seiko 1E50-0130SEIKO CASE REFERENCE
    Seiko 4206-0371SEIKO CASE REFERENCE
    Seiko 7546-841ESEIKO CASE REFERENCE
    Seiko D410AQUARTZ DIGITAL11 x 12
    Seiko V251-0060SEIKO CASE REFERENCE COSERVE 2003/2004
    Seiko V736-6A21SEIKO CASE REFERENCE
    Seiko Y643-5140PULSAR CASE REFERENCE

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    Similar Mainspring Listing

    This mainspring is similar to the mainspring used by the following movements. A similar mainspring differs slightly in one or more dimensions but may possibly still work as a replacement. When values differ the exact value is shown brackets for reference:

    MovementMainspringBuy
    Otero 17721.20 x 0.095 (0.100) x 320 (315) x 9.5 mm
    Buy mainspring
    Otero 1771.20 x 0.095 (0.100) x 320 (315) x 9.5 mm
    Buy mainspring
    Otero 7721.20 x 0.095 (0.100) x 320 (315) x 9.5 mm
    Buy mainspring
    Otero 771.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Otero 781.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Mido 1117PC1.20 x 0.100 x 340 (315) x 10.0 (9.5) mm
    Buy mainspring
    International Durowe 5701.20 x 0.100 x 300 (315) x 9.0 (9.5) mm
    Buy mainspring
    Elgin 8841.20 x 0.100 x 340 (315) x 10.0 (9.5) mm
    Buy mainspring
    International Durowe 5761.20 x 0.100 x 300 (315) x 9.0 (9.5) mm
    Buy mainspring
    Elgin 7931.20 x 0.100 x 340 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 10401.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Elgin 7951.20 x 0.100 x 340 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 10361.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 10651.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 10551.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    International Durowe 5901.20 x 0.100 x 300 (315) x 9.0 (9.5) mm
    Buy mainspring
    International Durowe 5801.20 x 0.100 x 300 (315) x 9.0 (9.5) mm
    Buy mainspring
    International Durowe 5861.20 x 0.100 x 300 (315) x 9.0 (9.5) mm
    Buy mainspring
    Elgin 7961.20 x 0.100 x 340 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 10351.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Mido 01117P1.20 x 0.100 x 340 (315) x 10.0 (9.5) mm
    Buy mainspring
    Moeris 6681.20 x 0.100 x 340 (315) x 10.0 (9.5) mm
    Buy mainspring
    Mido 01117PC1.20 x 0.100 x 340 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 1066M1.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 64-41291.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Fontainemelon 9051.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 1065M1.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6911051.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Girard Perregaux 480-4811.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6910411.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 1065 GMT1.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    International Durowe 6001.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6910241.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 64-44391.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 64-46331.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 10401.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 1066 GMT1.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 64-44981.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 10361.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 52701.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6910911.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 64-42181.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6909401.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 10651.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Bulova 10BZAC1.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 1055B1.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6912021.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6909231.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 54-50311.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 10551.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Girard Perregaux 4611.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6913771.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Fontainemelon 90-91.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6902571.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Girard Perregaux 4601.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Fontainemelon 9091.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 1036 GMT1.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6913511.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Fontainemelon 9081.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Tiffany T17-4571.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 10801.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6907111.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Otero 771.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 10661.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Rolex 10351.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6905831.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6910321.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 64-40211.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Tissot 7961.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    International Durowe 6101.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Otero 781.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6911481.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Fontainemelon 90-51.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 64-49511.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Zenith 133.81.20 x 0.110 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Citizen 4-6911131.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    Fontainemelon 90-41.20 x 0.105 (0.100) x 320 (315) x 10.0 (9.5) mm
    Buy mainspring
    A. Schild 16561.20 x 0.100 x 340 (315) x 10.0 (9.5) mm
    Buy mainspring
    A. Schild 16951.20 x 0.100 x 290 (315) x 9.0 (9.5) mm
    Buy mainspring
    A. Schild 16751.20 x 0.100 x 340 (315) x 10.0 (9.5) mm
    Buy mainspring

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