CERTINA 28-10 Brand CERTINA Caliber 28-10 Size 12 1/2 Function Version Hands 0,90x1,50 Stem 7538 Stem (subs.) Stem (2 pce) Balance staff 30510 INCA Balance staff (subs.) 30014 INCA Mainspring (subs.) 1,4x10,5x0,11 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.195Core and ratchet wheel, riveted912001952810224BSecond wheel -long lower pivot912002242810401Winding stem8027538445BSetting lever jumper combinded912004452810710= 25-45Pallet fork -pinion 1 lower end-piec.912007102545723Balance staff ST -shock-absorber80230510723Balance staff, pivoted80230014