The Deepsea is an ultra-resistant divers watch engineered by Rolex for deep-sea exploration. To honor James Camerons historic solo dive to the bottom of the Mariana trench, Rolex created the blue-black gradient dial which has a highly legible chromalight display. The stainless steel 44 mm case is assembled with a screw-down case back and a winding crown. With an impeccable water resistance of 12,800 feet, it comes with a triple lock waterproofness system. This timepiece runs on the self-winding 3235 calibre with a 70-hour power reserve.