In 1913, Blériot Remembers ZENITH’s precision with these phrases that he shared from the brand name’s guestbook: “I am extremely satisfied with the ZENITH observe which I generally use And that i can not advocate it extremely ample to individuals who treatment about accuracy”. ZENITH launches the 135-Observatoire limited version, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/