HELVETIA 831 Brand HELVETIA Caliber 831 Size 11 1/2 Function SC Version Hands 0,90x1,35 Stem 6325 Stem (subs.) Stem (2 pce) Balance staff 29811 INCA Balance staff (subs.) Mainspring (subs.) 1,35x10,0x0,12 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.182BBarrel with drum + cover93900182831401Winding stem8026325420BCrown wheel93900420831443BSetting lever assembled93900443831445Setting lever spring93900445831721BBalnace cplt. -for shock-absorber93900721831723Balance staff ST -shock-absorber80229811
