KASPER 901 Brand KASPER Caliber 901 Size 10 1/2 Function SC Version Hands 0,80x1,40 Stem 7304 Stem (subs.) Stem (2 pce) Balance staff 29604 Balance staff (subs.) 29718 Mainspring (subs.) 1,5x9,0x0,105 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027304415= 900Ratchet wheel92000415900705= 700Escape wheel -pinion straigt piv.92000705700723Balance staff ST -shock-absorber80229604723Balance staff, pivoted80229718