UNITAS 633BrandUNITASCaliber633Size8 3/4FunctionVersionHands0,60x1,20Stem6014Stem (subs.)Stem (2 pce)Balance staff26403Balance staff (subs.)27403 INCAMainspring (subs.)1,5x7,5x0,08Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8026014723Balance staff, pivoted80227403723Balance staff ST -shock-absorber80226403