Brand AS Caliber 1664 Size 11 1/2 Function SC-AUT Version Hands 0,90x1,50 Stem 7224 Stem (subs.) Stem (2 pce) Balance staff 26501 Balance staff (subs.) 27506 INCA Mainspring (subs.) 1,2x9,5x0,10 Mainspring (subs.) Battery