Brand FHF Caliber 29-1 Size 8 3/4x12 Function SC Version Hands 0,65x1,40 Stem 7003 Stem (subs.) Stem (2 pce) Balance staff 29503 Balance staff (subs.) 29712 INCA Mainspring (subs.) 1,35x11,0x0,11 Mainspring (subs.) Battery