Founded in 1865, it is a talented Swiss Manufacture with its own movement. At the World Exposition of 1900, the movement "Zenith" installed in the new pocket watch won a gold medal. In Japan, the pocket watch used by Japanese National Railways staff in the early Showa period adopted the "Zenit", and it has been popular in Japan for a long time. In the 1940s, he developed masterpiece movements such as the Caliber 135. In 1969, it was acquired by American Zenith Radio, and was temporarily ordered to stop manufacturing mechanical watches. I hid it in the attic of the factory and left it to posterity. In 1978, with the return of Swiss capital, the manufacture of mechanical watches was revived. After that, watches equipped with El Primero and Elite were the main products, and many works left their names in the watch industry.