OMEGA 371 Brand OMEGA Caliber 371 Size Function SC Version Hands 0,80x1,50 Stem 6326 Stem (subs.) Stem (2 pce) Balance staff 27515 INCA Balance staff (subs.) Mainspring (subs.) 03312 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8026326723Balance staff ST -shock-absorber80227515770Mainspring03312