For Timepiece aficionados and connoisseurs, a COSC-validated timepiece isn’t merely a merchandise of tech but a evidence to lasting excellence and precision. It signifies a timepiece that: Gives outstanding dependability and precision. Along with his colleague Thomas Earnshaw, the pair would develop simplified and sensible maritime chronometers. #Watches The Day-Date https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/