In 1913, Blériot Remembers ZENITH’s precision Using these words that he shared inside the model’s guestbook: “I'm incredibly satisfied with the ZENITH view which I normally use And that i simply cannot endorse it highly more than enough to people who care about precision”. ZENITH launches the 135-Observatoire confined edition, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/