VULCAIN 18 Brand VULCAIN Caliber 18 Size 12 Function SC-AL Version Hands Stem 1051-010 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.180Barrel with drum + cover99301020010401Handsetting stem993010510107180Barrel with drum + cover WW99301024011