Brand LONGINES Caliber 291 Size 11 1/2 Function SC-CLD-AUT Version Hands Stem 6529 Stem (subs.) Stem (2 pce) Balance staff 30728 Balance staff (subs.) Mainspring (subs.) 1.20x11.0x0.115x360 AUT Mainspring (subs.) 820 2964 0 Battery