Brand ZENITH Caliber 12-4-6 Size 12 Function Version Hands 0,75x1,30 Stem 8406 Stem (subs.) Stem (2 pce) Balance staff 36009 INCA Balance staff (subs.) Mainspring (subs.) 1,55x10,5x0,10Sp. Mainspring (subs.) 4137-DBH Battery