FELSA 4120 Brand FELSA Caliber 4120 Size 7 3/4 Function Version Hands 0,60x1,20 Stem 5028 Stem (subs.) Stem (2 pce) Balance staff 23202 Balance staff (subs.) 25501 INCA Mainspring (subs.) 1,25x6,5x0,07 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8025028420= 4020Crown wheel920004204020721BBalnace cplt. -for shock-absorber920007214120723Balance staff ST -shock-absorber80223202723Balance staff, pivoted80225501