FELSA 4023 Brand FELSA Caliber 4023 Size 7 3/4 Function Version Hands 0,60x1,20 Stem 5028 Stem (subs.) Stem (2 pce) Balance staff 23202/23204 Balance staff (subs.) 25501/25111 Mainspring (subs.) 1,25x6,50x0,07 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8025028445= 4020Setting lever spring920004454020723Balance staff ST -shock-absorber80223202723Balance staff, pivoted80225501