Water resistant up to 100 bar (1,000 m) and equipped with a helium escape valve, the Khaki BeLOWZERO is perfect for even the most daring of deep water adventures. The convex sapphire crystal offers high-performance protection during underwater exploration and its bright yellow rubber strap, paired with a 46mm brushed titanium case make it reminiscent of the bulk of a yellow submarine. This Hamilton is a nautical classic designed for marine pioneers. CASE Case material: Stainless Steel Case size: 46mm Thickness (mm): 15.7 Dial color: Grey Crystal: Sapphire Lug width: 24mm Power reserve: 80 hour Water Resistance: 100 bar (1000m)/1450 psi (3280.8ft) MOVEMENT H-10 A three-hand movement with or without a date function and boasting a superior power reserve of 80 hours, the H-10 appears with intricate contrasting snail and pearled patterns for the American Classic models it drives and streamlined surfaces for the pilots’ watches. BRACELET/STRAP Strap: Rubber Buckle type: H-Buckle Buckle width: 22mm REF: H78535380