Rolex Deepsea 126660 D-Blue Dial

About This Watch

The Rolex Deepsea 126660 with D-Blue dial is an engineering marvel rated to a staggering 3,900 meters (12,800 feet) of water resistance. The "D-Blue" gradient dial fades from brilliant blue at 12 o'clock to jet black at 6 o'clock, inspired by James Cameron's historic solo dive to the bottom of the Mariana Trench in 2012 at a depth of 10,908 meters. To achieve its extreme depth rating, the Deepsea employs Rolex's patented Ringlock System, which consists of a nitrogen-alloyed steel ring, a 5.5mm-thick domed sapphire crystal, and a grade 5 titanium caseback. This three-component architecture distributes the immense pressure of the deep ocean across the case structure. At 44mm wide and 17.7mm thick, the Deepsea is undeniably a large watch, and its substantial weight of 220 grams makes its presence known on the wrist. The helium escape valve at 9 o'clock allows the release of helium gas during saturation diving decompression. The caliber 3235 inside delivers a 70-hour power reserve with superlative chronometer precision. The Deepsea is not merely a showpiece but a genuine professional diving instrument that has been tested and certified by COMEX. For those who appreciate extreme engineering and bold proportions, it represents the ultimate expression of mechanical dive watch technology.