B.F.G. 590BrandB.F.G.Caliber590SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.8139Operating lever chrono 2 funct.920081395908223Hammer - minute92008223590