Brand MÜLLER-SCHLENKER Caliber 13 Size 10 1/2 Function Version Hands 0,35x1,30 Stem 9401 (kz) Stem (subs.) 9402 (lg) Stem (2 pce) Balance staff 30503 Balance staff (subs.) Mainspring (subs.) 1,8x9,0x0,10 Mainspring (subs.) Battery