OMEGA R17.8BrandOMEGACaliberR17.8SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staff26504Balance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.445= 300Setting lever jumper combinded300-111096503001110723Balance staff ST -shock-absorber80226504