FELSA 4128BrandFELSACaliber4128Size7 3/4FunctionVersionHands0,60x1,20Stem5028Stem (subs.)Stem (2 pce)Balance staff23202Balance staff (subs.)23204/25501Mainspring (subs.)1,25x6,50x0,07Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8025028723Balance staff, pivoted80223204723Balance staff ST -shock-absorber80223202