ZENITH Solidifies its Worldwide track record as the leading manufacturer of precision chronometers and devices throughout many domains. Pierre Jaquet-Droz (1721-1790), founder of the fashionable watchmaking home that bears his name, was not only The most renowned watchmakers with the 18th century; he was also a pioneer in the event https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/