"An Informative guidebook within the heritage of British watchmaking. Horology followers of all amounts are guaranteed to find value here." Pierre Jaquet-Droz (1721-1790), founder of the fashionable watchmaking home that bears his title, was not simply One of the more renowned watchmakers of the 18th century; he was also a https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/