B.F.G. 783FabrikatB.F.G.Kaliber783Size8 3/4FunctionVersionHandsStem7245Stem (subs.)Stem (2 pce)Balance staff36210Balance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027245723Balance staff ST -shock-absorber80236210