ZENITH 133.8BrandZENITHCaliber133.8Size13FunctionSC-AUTVersionHands1,20x1,70Stem7103Stem (subs.)Stem (2 pce)Balance staff30406Balance staff (subs.)30720 INCAMainspring (subs.)1.2x10.0x0.08 AUTMainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.227Sweep second pinion995002271338401Winding stem8027103410Winding pignon723Balance staff, pivoted80230720723Balance staff ST -shock-absorber802304061481BReduction wheel AUT995014811338