In 1913, Blériot Recalls ZENITH’s precision Using these phrases that he shared while in the brand’s guestbook: “I am pretty satisfied with the ZENITH observe which I generally use and I cannot recommend it really plenty of to people who care about accuracy”. 6 miles, or fifty five.7 km) at https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/