For Timepiece aficionados and connoisseurs, a COSC-validated timepiece isn’t just a product of tech but a evidence to lasting excellence and accuracy. It represents a timepiece that: Presents great dependability and precision. 6 miles, or 55.7 km) at the conclusion of a six months’ voyage. (The geographical mile is defined https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/