For Timepiece aficionados and connoisseurs, a COSC-validated timepiece isn’t only a product of tech but a proof to lasting excellence and precision. It represents a timepiece that: Offers superb dependability and precision. Pierre Jaquet-Droz (1721-1790), founding father of the fashionable watchmaking house that bears his title, was not only Among https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/