Any serious mariner should consider this versatile binocular. The 7x magnification is ideal for viewing at sea and the 50mm objective lenses give maximum light-gathering capability for a bright image even under twilight conditions. Rubber-armoured in a stylish matte blue with roll-down eyecups. This binocular also features an internal compass that is illuminated for night use and a rangefinder scale for instant distance reading. Fully waterproof, this model also has a flotation strap that prevents the binoculars from sinking if dropped overboard.