EB 1613 Brand EB Caliber 1613 Size 6 3/4x8 Function SC Version Hands 0,80x1,20 Stem 7806 Stem (subs.) Stem (2 pce) Balance staff 33106 Balance staff (subs.) Mainspring (subs.) 1,6x7,5x0,10 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027806723Balance staff ST -shock-absorber80233106