OMEGA 2627 Exploded diagram BrandOMEGACaliber2627SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.721BBalance cplt. -regulated10.058.61965007212627