OMEGA 920 Exploded diagram BrandOMEGACaliber920SizeFunctionSC-CLD-CHROVersionHandsStem6331Stem (subs.)Stem (2 pce)Balance staff34006Balance staff (subs.)Mainspring (subs.)eigenMainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.205BCenter wheel drilled + cannon920-122496509201224210BThird wheel920-124096509201240401Winding stem8026331407= 860Clutch wheel860-110796508601107420= 860Crown wheel860-110196508601101723Balance staff ST -shock-absorber802340062575BDate jumper spring920-152996509201529