Brand S.E.F.E.A. Caliber 89 Size 6 3/4x8 Function Version Hands 0,55x1,00 Stem 6301 Stem (subs.) Stem (2 pce) Balance staff 28503 Balance staff (subs.) Mainspring (subs.) 1,60x7,00x0,09 Mainspring (subs.) Battery