Shop now Nikko produced high quality binoculars for the Japanese Navy during WWII, such as the 20 X 120 straight through model. They were usually found on decks of Japanese battleships. The U.S. reverse engineered their version of 20 X 120 binoculars from captured Japanese binoculars during WWII. Nikko was the brand name logo used by Nippon Kogaku during the 1930’s. They started as an optical firm parallel to the German manufacturers of Leitz and Zeiss. Prior to WWI, Japan