ZENITH 12-4BrandZENITHCaliber12-4Size12FunctionVersionHands0,75x1,30Stem8406Stem (subs.)Stem (2 pce)Balance staff36009 INCABalance staff (subs.)Mainspring (subs.)1,55x10,5x0,10Sp.Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8028406723Balance staff ST -shock-absorber80236009770Mainspring04137