Brand T.E. (TECHNIC EBAUCHES) Caliber S65 Size 5 1/2 Function Version Hands 0,55x1,00 Stem 5537 Stem (subs.) Stem (2 pce) Balance staff 27908 Balance staff (subs.) Mainspring (subs.) 1,40x6,00x0,065 Mainspring (subs.) Battery