Brand CERTINA Caliber 15-14 Size 6 3/4x8 Function SC Version Hands 0,55x1,10 Stem 6501 Stem (subs.) Stem (2 pce) Balance staff 28006 INCA Balance staff (subs.) Mainspring (subs.) 1,5x7,0x0,08 Mainspring (subs.) Battery