The newest evolution of Omega's highly regarded SeaMaster series, the Aqua Terra automatic chronometer delivers rugged handsome styling and superior performance, on land or at sea. This model features a large round case and durable link bracelet, both crafted from high performance stainless steel with brushed and polished finishes. Beneath a virtually scratch-proof sapphire crystal, the white dial sports luminous rose gold hands and markers, a luminous sweep seconds hand and seconds indexes, and a date display at the three o'clock position. A see-through caseback allows a view of the self-winding Swiss automatic movement, which is enhanced by Omega's co-axial escapement, a technology that provides high precision and stable accuracy over long periods of use. This Omega watch features a 44 hour power reserve and is rated water resistant to a full 150 meters. But Omega is more than just a fashionable watch. In 1965, the Omega Speedmaster chronograph was "flight-qualified by NASA for all manned space missions" as the only wristwatch to have withstood all of the U.S. space agency's severe tests, including passing grades for extreme shocks, vibrations, and temperatures ranging from -18 to +93 degrees Celsius. The greatest moment in the Speedmaster's history was undoubtedly 20 July 1969 at 02:56 GMT, when it recorded man's first steps on the Moon's surface as part of the Apollo 11 mission. Today, Omega is known for its rigorous testing of new movements, cases, and bands. Each new Omega movement is tested on the wrist in existing Omega models, while various laboratory tests are conducted to determine temperature-resistance, shock-resistance and vibration-resistance.