ZENITH 57.8BrandZENITHCaliber57.8Size5FunctionVersionHands0,55x095Stem6521Stem (subs.)Stem (2 pce)Balance staff25805Balance staff (subs.)Mainspring (subs.)1,15x6,50x0,075Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8026521723Balance staff ST -shock-absorber80225805770Mainspring99500770578