IWC 3252 Brand IWC Caliber 3252 Size Function Version Hands Stem = 3254 Stem (subs.) 9420 0401 3254 Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401= 3254Winding stem942004013254