Brand MST Caliber 428 Size 13 1/4 Function CLD Version Hands 0,80x1,50 Stem 7920 Stem (subs.) Stem (2 pce) Balance staff 33904 Balance staff (subs.) 33107 INCA Mainspring (subs.) 1,7x11,5x0,14 Mainspring (subs.) Battery