In 1913, Blériot Recollects ZENITH’s precision Using these terms that he shared during the brand’s guestbook: “I am pretty satisfied with the ZENITH watch which I generally use and I are unable to suggest it very sufficient to people that treatment about precision”. ZENITH launches the one hundred thirty five-Observatoire https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/