UNITAS 6454 Brand UNITAS Caliber 6454 Size 13 Function Version Hands 0,90x1,50 Stem 7040 Stem (subs.) 7079 Stem (2 pce) Balance staff 28110/28116 Balance staff (subs.) 28716/28911 Mainspring (subs.) 1,50x11,5x0,135 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027040401Aufzugwelle Ersatz8027079723Balance staff ST -shock-absorber80228110723Balance staff, pivoted80228716