IWC 3251BrandIWCCaliber3251SizeFunctionVersionHandsStem= 3254Stem (subs.)9420 0401 3254Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.250Hour wheel401= 3254Winding stem942004013254