FELSA 4000N Brand FELSA Caliber 4000N Size 11 1/2 Function SC-AUT Version Hands 0,90x1,50 Stem 6019 Stem (subs.) 6020 Stem (2 pce) Balance staff 28905 INCA Balance staff (subs.) Mainspring (subs.) 1,4x10,5x0,11 Mainspring (subs.) 3700x Battery WatchpartsPart NocaliberdescriptionoriginalArtno.206Center wheel drilled without cannon920002064000401Winding stem404= 4000Winding stem -female -mouv.part8036019445= 4000Setting lever spring920004454000705= 4000Escape wheel -pinion straigt piv.920007054000723Balance staff ST -shock-absorber802289051481= 4000Reduction wheel AUT92001481400014824000Ratchet wheel driving wheel9200148240001496= 4000,4000NOscillating weight axle920014964001