Brand MST Caliber 355 Size 8 3/4x11 3/4 Function Version Hands 0,60x1,30 Stem 7904 Stem (subs.) Stem (2 pce) Balance staff 30707 Balance staff (subs.) 30724 / 33011 SSR Mainspring (subs.) 1,7x10,0x0,12 Mainspring (subs.) Battery