Under Rolex warranty until 2022. Only made for 4 years, this original Deepsea D-Blue was made in response to James Cameron's astonishing solo journey to the bottom of the Marianas Trench. The graduated blue-to-black dial has 'Chromalight' hour markers that glow vivid blue at night. Other Rolex special features include the black zirconium dioxide 'Cerachrom' one-directional bezel, and helium escape valve. Rolex Glidelock clasp for easy adjustment on the wrist. Original box, swing tags, booklets and British-origin Rolex warranty card.