IWC 52BrandIWCCaliber52SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)2,10x18,0x0,200Mainspring (subs.)SpezialBatteryWatchpartsPart NocaliberdescriptionoriginalArtno.723Balance staff ST -shock-absorber9420072353770BMainspring t-hook9420077152