Rolex Deepsea
The most extreme Rolex ever made. Waterproof to 3,900 m / 12,800 ft, with the patented Ringlock System that lets a 5 mm sapphire crystal hold against 6 tonnes of pressure. The Deepsea Sea-Dweller D-Blue "James Cameron" 126660 and the 2022 18k yellow gold Deepsea 136668LB are the modern bench-tops of capability watchmaking.