For Timepiece aficionados and connoisseurs, a COSC-validated timepiece isn’t just a product of tech but a evidence to lasting excellence and precision. It represents a timepiece that: Presents fantastic dependability and precision. Meanwhile, Graham has also ventured beyond their comfort zone with a few better echelon parts. Their Orrery Tourbillon, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/