HAMILTON 26 Brand HAMILTON Caliber 26 Size 7 3/4 Function o. SC Version Hands 0.60x1.20 Stem 4906 Stem (subs.) Stem (2 pce) Balance staff 23801 Balance staff (subs.) 25001 INCA Mainspring (subs.) 1,2x7,5x0,085 Mainspring (subs.) Battery MovementsArtno.brandcaliberSizehandsfunctionspecial153000ETA2512-17 3/40.60x1.20o. SC WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8024906723Balance staff ST -shock-absorber80223801723Balance staff, pivoted80225001