MARVIN 320 Brand MARVIN Caliber 320 Size Function Version Hands Stem 5430 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.401Winding stem8025430410Winding pignon95800410320445BSetting lever spring723BBalance staff ST -shock-absorberL= 24680207239723Balance staff ST -shock-absorberL = 26980207239