It was with OMEGA’s maritime legacy in mind that the brand launched its Planet Ocean line in 2005. The stylish OMEGA Seamaster Planet Ocean 600M pays homage to OMEGA’s dive watch heritage. This model, with its scratch-resistant sapphire crystal, features a black dial with index hour markers along with Arabic numerals at 3,6,9 and 12 O'clock, a date indicator between the 3 and 6 O'clock positions, and chronograph sub-dials. The index markers along with the hands are luminescent. The black unidirectional rotating divers’ bezel is mounted on a 45.5 mm stainless steel case on an 8 inch stainless steel bracelet with a foldover buckle. The OMEGA Seamaster Planet Ocean 600M is water resistant to 600 meters / 2000 feet / 60 bar, and has a helium-escape valve. This certified chronometer timepiece is powered by the Co-Axial caliber 3313 automatic movement.