OMEGA 251BrandOMEGACaliber251SizeFunctionSCVersionHands0,65x1,10Stem6323Stem (subs.)Stem (2 pce)Balance staff26301Balance staff (subs.)25902 INCAMainspring (subs.)Spez.Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.195= 240Barell arbor240-120496502401204401Winding stem8026323443= 240Setting lever assembled240-110996502401109445= 240Setting lever spring240-111096502401110723Balance staff, pivoted80225902723Balance staff ST -shock-absorber80226301