In 1913, Blériot Recollects ZENITH’s precision with these phrases that he shared inside the manufacturer’s guestbook: “I'm really content with the ZENITH enjoy which I ordinarily use And that i can't endorse it very enough to individuals who care about accuracy”. ZENITH launches the one hundred thirty five-Observatoire constrained version, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/