Brand ISA Caliber 8171.202 Size 11 1/2 Function SC-D(4V)-TG(Z)-CHR 1/5S Version 3 EYES ( 2 - 6 -10 ) Hands 0.90x1.50x0.20/0.16 Stem = 815 eigen Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery 395