For Timepiece aficionados and connoisseurs, a COSC-validated timepiece isn’t merely a product of tech but a evidence to Long lasting excellence and precision. It represents a timepiece that: Presents great dependability and precision. Pierre Jaquet-Droz (1721-1790), founder of the fashionable watchmaking home that bears his identify, was don't just one https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/