Brand UNITAS Caliber 191 Size 6 3/4x8 Function Version Hands 0,60x1,10 Stem 5914 Stem (subs.) Stem (2 pce) Balance staff 28104 Balance staff (subs.) 27717 INCA Mainspring (subs.) 1,35x7,5x0,08 Mainspring (subs.) Battery