IWC 422BrandIWCCaliber422Size10 1/2Functiono. SCIVersionHandsStem5317Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.180/1C403Barrel complete -with mainspring94200180403401Winding stem8025317