Brand UNITAS Caliber 153 Size 10 1/2 Function SC Version Hands 0,65x1,30 Stem 7019 Stem (subs.) Stem (2 pce) Balance staff 35801 Balance staff (subs.) 35505 INCA Mainspring (subs.) 1,5x9,0x0,10 Mainspring (subs.) Battery