For Timepiece aficionados and connoisseurs, a COSC-validated timepiece isn’t only a merchandise of tech but a evidence to Long lasting excellence and precision. It represents a timepiece that: Gives outstanding dependability and precision. 6 miles, or fifty five.seven km) at the conclusion of a six months’ voyage. (The geographical mile https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/