Certifications and standards! COSC certification is one of the most common. To earn it, a movement has to run within -4 to 6 seconds per day, tested in multiple positions and temperatures. Then there’s METAS, which sets a higher benchmark. Beyond COSC-level accuracy, METAS-certified watches are tested after they’re fully cased up, not just the raw movement. They face exposure to magnetic fields up to 15,000 gauss, extremes in water resistance, their power reserve is tested to ensure it meets the

The Black Bay 58 explained in 60 seconds. Sized at 39mm, it brings back the proportions of vintage divers, making it one of the most wearable modern tool watches. Inside is Tudor’s MT5402 caliber, a COSC-certified automatic movement with a bidirectional rotor and 70-hour power reserve. The riveted steel bracelet and mix of polished and satin finishing nod to the past while holding up to everyday wear. Rated to 200 meters of water resistance, the Fifty-Eight blends classic aesthetics with modern