UNITAS 6331BrandUNITASCaliber6331Size14FunctionVersionHands0,90x1,50Stem8030Stem (subs.)Stem (2 pce)Balance staff31506Balance staff (subs.)Mainspring (subs.)1,7x11,5x0,13Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8028030723Balance staff ST -shock-absorber80231506