UNITAS 656BrandUNITASCaliber656Size13FunctionVersionHands0,90x1,50Stem7040,Stem (subs.)7079Stem (2 pce)Balance staff28110/28116Balance staff (subs.)28719/28911Mainspring (subs.)1,15x11,50x0,135Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027040,401Aufzugwelle Ersatz8027079723Balance staff, pivoted80228719723Balance staff ST -shock-absorber80228110