In 1913, Blériot Remembers ZENITH’s precision Using these text that he shared while in the brand name’s guestbook: “I am incredibly happy with the ZENITH watch which I usually use and I are not able to advocate it really enough to people who care about precision”. ZENITH launches the 135-Observatoire https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/