Brand ORIS Caliber 451 Size 9 3/4 Function Version Hands 0,80x1,50 Stem 8501 Stem (subs.) Stem (2 pce) Balance staff 33602 Balance staff (subs.) 33504 / 34707 KIF Mainspring (subs.) 1,55x8,5x0,10 Mainspring (subs.) Battery