B.F.G. 910BrandB.F.G.Caliber910Size8 3/4FunctionVersionHands0,70x1,30Stem7224Stem (subs.)Stem (2 pce)Balance staff34903Balance staff (subs.)34809Mainspring (subs.)1,15x8,5x0,10Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027224723Balance staff, pivoted80234809723Balance staff ST -shock-absorber80234903