EB 8121BrandEBCaliber8121Size11 1/2FunctionSC-AUTVersionHands0,90x1,30Stem6317Stem (subs.)Stem (2 pce)Balance staff26405Balance staff (subs.)Mainspring (subs.)1,3x7,5x0,08Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8026317723Balance staff ST -shock-absorber80226405