B.F.G. 875BrandB.F.G.Caliber875Size12FunctionVersionHands1,10x1,90Stem9118Stem (subs.)9117Stem (2 pce)Balance staff44704 / 44707Balance staff (subs.)44705 / 44709Mainspring (subs.)1,15x13,0x0,135Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8029118407875clutch wheel90300407875410875Winding pignon90300410875435Yoke spring90300435875435/1= 866Yoke spring90300435866723Balance staff, pivoted80244705723Balance staff ST -shock-absorber80244704