The all-steel Omega Seamaster Planet Ocean ref. 2218.50.00 is easily identifiable because of its eye-catching orange bezel. Launched in 2005, the Planet Ocean is a relatively recent addition to the Omega line. With a waterproof crown and helium escape valve, it has everything the wearer needs to explore the deepest parts of the ocean. Because of these characteristics, the case can endure pressures found at depths of up to 2,000 feet/600 meters. The calibre 3313 movement, which has a 52-hour power reserve, a more modern Co-Axial escapement, and chronograph functionality, is likewise featured in reference 2218.50.00.