In 1913, Blériot Recollects ZENITH’s precision Using these words and phrases that he shared during the brand’s guestbook: “I am extremely content with the ZENITH enjoy which I normally use And that i can not suggest it extremely more than enough to individuals who treatment about precision”. Lange & Söhne. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/