For Timepiece aficionados and connoisseurs, a COSC-validated timepiece isn’t simply a merchandise of tech but a evidence to lasting excellence and accuracy. It represents a timepiece that: Presents outstanding dependability and precision. As well as his colleague Thomas Earnshaw, the pair would acquire simplified and useful marine chronometers. COSC-certification on https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/