A.V. 451BrandA.V.Caliber451Size6 3/4x8FunctionVersionHands0,65x1,10Stem6205Stem (subs.)Stem (2 pce)Balance staff28007Balance staff (subs.)Mainspring (subs.)1,40x7,50x0,085Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8026205723Balance staff ST -shock-absorber80228007