FELSA 4031 Brand FELSA Caliber 4031 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 stem8026019705= 4000Escape wheel -pinion straigt piv.920007054000723Balance staff ST -shock-absorber80228505723Balance staff, pivoted802289091481= 4000Reduction wheel AUT9200148140001482= 4000Ratchet wheel driving wheel9200148240001496= 4000,4000NOscillating weight axle920014964001
