In 1913, Blériot Recollects ZENITH’s precision with these terms that he shared during the brand’s guestbook: “I'm really content with the ZENITH observe which I usually use and I are not able to advise it highly enough to people who treatment about precision”. Lange & Söhne. I’ll clarify why: the https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/