Brand T.E. (TECHNIC EBAUCHES) Caliber 54 Size 5 1/4 Function Version Hands 0,60x1,10 Stem 5536 Stem (subs.) Stem (2 pce) Balance staff 30904 Balance staff (subs.) Mainspring (subs.) 1,7x7,5x0,08 Mainspring (subs.) Battery