UNITAS 160 Brand UNITAS Caliber 160 Size 10 1/2 Function Version Hands 0,65x1,30 Stem 6319 Stem (subs.) Stem (2 pce) Balance staff 35801 Balance staff (subs.) 35505 INCA Mainspring (subs.) 1,5x9,0x0,10 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027019723Balance staff ST -shock-absorber80235801723Balance staff, pivoted80235505