OMEGA 1601BrandOMEGACaliber1601SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staff28038Balance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.723Balance staff ST -shock-absorber80228038.HAND SETTING MAGNET1601-9001965016019001.MODULE1601-9000965016019000