For Timepiece aficionados and connoisseurs, a COSC-validated timepiece isn’t simply a product of tech but a proof to Long lasting excellence and precision. It represents a timepiece that: Presents great dependability and precision. 6 miles, or fifty five.seven km) at the end of a six weeks’ voyage. (The geographical mile https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/