OMEGA 504 Brand OMEGA Caliber 504 Size Function SC-CLD-AUT Version Hands 0,80x1,50 Stem 5810 Stem (subs.) Stem (2 pce) Balance staff 28406 INCA Balance staff (subs.) Mainspring (subs.) 470-1208 Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.227= 502Sweep second wheel502-1250250= 470hour wheel H2= 1.85470-123296504701232255= 502Hour wheel sweep sec.502-123196505021231401= 500Winding stem500-11068025810415= 470Ratchet wheel470-110096504701100420= 550Crown wheel470-110196505501101445= 330Setting lever spring330-111096503301110721= 490Balnace cplt. -for shock-absorber490-132796504901327723Balance staff ST -shock-absorber80228406771= 470Mainspring AUT sliding attachemnet470-1208965047012081141eigenLower bridge for automatic device504-1033965050410331143Oscillating weight504-10261428= 330Stop click AUT330-1104965033011041496= 470Oscillating weight axle470-1400965047014002557502date indicator502-1500965050215002575= 502Date jumper spring502-150396505021503