Brand BIFORA Caliber 103 (SC) Size 10 1/2 Function SC Version Hands 0,85x1,40 Stem 7024 Stem (subs.) Stem (2 pce) Balance staff 31501 Balance staff (subs.) 32501 Biforashock Mainspring (subs.) 1,5x9,5x0,105 Mainspring (subs.) Battery