Brand OSCO Caliber 600 Size 11 1/2 Function SCI Version Hands 0,90x1,40 Stem 8809 (alt) Stem (subs.) 8813 (neu) Stem (2 pce) Balance staff 29519 Balance staff (subs.) Mainspring (subs.) 1,55x9,0x0,09 Mainspring (subs.) Battery