A.V. 423BrandA.V.Caliber423Size10 1/2FunctionVersionHands0,70x1,30Stem6025Stem (subs.)Stem (2 pce)Balance staff22301Balance staff (subs.)23802 INCAMainspring (subs.)1,1x9,0x0,10Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.227BSweep second pinion92000227423401Winding stem8026025407Bclutch wheel92000407423410BWinding pignon with square hole430BClick spring92000430423445BSetting lever spring92000445423705BEscape wheel -pinion straigt piv.92000705423721423Balnace cplt. - INCA995007214231721423Balnace cplt. -for shock-absorber99500721423723Balance staff, pivoted80223802723Balance staff ST -shock-absorber80222301