IWC 19HBrandIWCCaliber19HSizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)1,80x17,0x0,21Mainspring (subs.)SpezialBatteryWatchpartsPart NocaliberdescriptionoriginalArtno.770BMainspring t-hook9420077019