IWC 4121 Brand IWC Caliber 4121 Size Function Version Hands Stem 5441 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.275Sweep second pinionNICHT MEHR LIEFERBAR401Winding stem8025441445= C412Setting lever spring94200445C412
