For Timepiece aficionados and connoisseurs, a COSC-validated timepiece isn’t only a item of tech but a proof to Long lasting excellence and precision. It represents a timepiece that: Presents great dependability and precision. James L. January 14, 2023 The main reason I say that I'm amazed is due to Certina https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/