Brand AHO Caliber 1057 Size 10 1/2 Function SC Version Hands 0,80x1,30 Stem 7406 Stem (subs.) Stem (2 pce) Balance staff 30803 Balance staff (subs.) 31201(SSR)/31901(A) Mainspring (subs.) 1,5x9,5x0,11 Mainspring (subs.) Battery