Brand VENUS Caliber 103 (CHR) Size 10 1/2 Function CHR Version Hands 0,80x1,40 Stem 7408 Stem (subs.) Stem (2 pce) Balance staff 34301 Balance staff (subs.) 34204 INCA Mainspring (subs.) 1,8x9,0x0,10 Mainspring (subs.) Battery