Product Description
GEARS MOON DRIVE HERMLE
Hermle moon drive gears. Select from two sizes.
HMG-24 (For Hermle movements 451, 1151, 461, and 1161): 20 teeth, 15.39mm O.D., 5mm I.D. (hole).
HMG-53 (For Hermle movements 471 and 1171): 20 teeth, 15.39mm O.D., 7.5mm I.D. (hole).