In 1913, Blériot Recollects ZENITH’s precision Using these phrases that he shared while in the manufacturer’s guestbook: “I am really happy with the ZENITH look at which I commonly use And that i can't endorse it really plenty of to folks who treatment about accuracy”. six miles, or 55.seven km) https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/