Watch Database

    Hamilton 770

    22 JEWEL 8 *

    Jewels: 22

    Power Reserve: 45 hrs

    Frequency: 18000 vph

    Type: Manual Wind

    Period used: ~1955

    Size: 20.4 x 21.9 mm

    Height: 3.8 mm

    Hands: 1.28 x 0.65 / 0.18 mm

    Mainspring Listing

    DimensionsGR Reference #End Type
    1.30 x 0.110 x 280 x 9.0 mmGR3281TT

    Parts Listing

    Part DescriptionReference #AlternateDiscontinued
    BALANCE111401/HAM7653/HAM
    BALANCE COMPLETE113402/HAM113402/HAMYes
    BARREL AND CAP115401/HAM7605/HAM
    BARREL ARBOR101401/HAM7611/HAM
    BOLTS537170/HAM7309/HAM
    CANNON PINION, HT 2.36319401/HAM319401/HAMYes
    CANNON PINION, HT 2.87319402/HAM319402/HAMYes
    CANNON PINION, HT 3.28319403/HAM7629S/HAM
    CENTER WHEEL639401/HAM639401/HAMYes
    CLICK167270/HAM7219/HAM
    CLUTCH174401/HAM7615/HAM
    CROWN POST, FEMALE615270/HAM615270/HAMYes
    ENDSTONE LOWER BALANCE538170/HAM7380/HAM
    ESCAPE PINION322402/HAM7634/HAM
    ESCAPE WHEEL, C/C657402/HAM657402/HAMYes
    FOURTH WHEEL661402/HAM661402/HAMYes
    GUARD PIN315270/HAM43122/HAM
    HAIRSPRING COLLET182270/HAM182270/HAMYes
    HAND, GILT POINTEX SECOND209273/HAM209273/HAMYes
    HAND, GILT POINTEX SECOND209272/HAM209272/HAMYes, use 209283/HAM
    HAND, YELLOW POINTEX SECOND209274/HAM209274/HAMYes
    HAND, YELLOW SECOND POINTEX209275/HAM209275/HAMYes
    HANDS, YELLOW POINTEX 13MM208414/HAM208414/HAMYes
    HOUR WHEEL HT 1.57663401/HAM7641/HAM 12/0
    HOUR WHEEL HT 2.08663402/HAM7641C/HAM 12/0
    HOUR WHEEL HT 2.48663403/HAM7641S/HAM 12/0
    JEWEL, LOWER CENTER241401/HAM7668/HAM
    JEWEL, U/BALANCE INCA CAP538172/HAM7379/HAM
    JEWEL, UPPER CENTER241270/HAM7267/HAM
    JEWEL, UPPER FOURTH WHEEL255402/HAM
    MAINSPRING 1.3-.11-285 TBRMS-JA223GR 3281-T
    MINUTE WHEEL677401/HAM7642/HAM 752
    PALLET ARBOR103270/HAM7638/HAM
    PALLET FORK AND ARBOR307270/HAM307270/HAMYes
    PALLET FORK USE 307270307402/HAM7657/HAM
    ROLLER, COMBINATION 1.83MM DIA350270/HAM350270/HAMYes
    SCREW, SET LEVER468270/HAM468270/HAMYes
    SET BRIDGE591400/HAM
    SET LEVER (DETENT)290270/HAM290270/HAMYes
    SET WHEEL686401/HAM7616/HAM
    SPRING, U/L INCABLOC SHOCK541170/HAM7338/HAM
    STAFF607402/HAM7627A/HAM
    STEM614401/HAM614401/HAMYes
    STEM, EXTRA SHOULDER614402/HAM614402/HAMYes
    STEM, SPLIT MALE615400/HAM61230/HAM
    THIRD WHEEL690401/HAM7648/HAM 752
    WINDING PINION331270/HAM7214/HAM
    WINDING WHEEL HUB219270/HAM7210/HAM

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