UNITAS 6309BrandUNITASCaliber6309Size13FunctionVersionHands0,90x1,50Stem7040Stem (subs.)7079Stem (2 pce)Balance staff29718/28730Balance staff (subs.)29616/29617Mainspring (subs.)1,05x11,5x0,14Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027040401Aufzugwelle Ersatz8027079723Balance staff, pivoted80229616723Balance staff ST -shock-absorber80229718