Brand FEMGA Caliber 520C Size 11 1/2 Function CLD Version Hands 0,80x1,40 Stem 7327 Stem (subs.) Stem (2 pce) Balance staff 31314 Balance staff (subs.) 32211 SSR / 31605 INCA Mainspring (subs.) 1,6x9,0x0,11 Mainspring (subs.) Battery