FELSA 4030 Brand FELSA Caliber 4030 Size 11 1/2 Function Version Hands 0,90x1,50 Stem 6019 Stem (subs.) Stem (2 pce) Balance staff 28505 Balance staff (subs.) 28909 Mainspring (subs.) 1,40x10,5x0,11 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8026019723Balance staff ST -shock-absorber80228505723Balance staff, pivoted80228909