This is the professional diving watch made from solid titanium that is completely resistant to salt water and weighs 40% lighter than stainless steel. The solid-forged titanium case, screw-down crown, and exhibition caseback provide a rigid, watertight seal that ensures water resistance to 3,300'. Patented technology used to illuminated the hands and numbers provide 5X the brightness of tritium models for ideal submarine illumination. A window clearly displays the day of the week while its dual rotating timing bezels measure elapsed time underwater. A 4.5mm sapphire crystal protects the face. Revealed by the exhibition caseback, the watch's hacking, 24-jewel Miyota 9015 automatic movement ensures reliable timekeeping with 28,800 bph, requiring only the motion of the hand to keep the watch powered; it can also be manually wound as needed. The adjustable titanium (or included rubber) band fits wrists 5"-8 1/2" and attaches to the case with solid, threaded screw bars, eschewing the unreliable spring bars common to lesser timepieces. Limited edition of only 500 units. Case 1.88" Diam. x .66" thick. (6 3/4 oz.)