IWC 402BrandIWCCaliber402Size10 1/2FunctionSCIVersionHandsStem5317Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)9420 0770 402Mainspring (subs.)0,95 x 9.0BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.180/1C403Barrel complete -with mainspring94200180403401Winding stem8025317770Mainspring94200770402