Reflecting Omega's passion for the ocean, this Omega Seamaster Planet Ocean 600m Co-Axial Master chronometer chronograph men's watch has been designed to show the brands rich, long and varied history with exploring the depths of the sea to create the ultimate diving timepiece. This masculine design is fastened with a fine-brushed stainless steel bracelet and features a 45.5mm stainless steel case with a blue ceramic unidirectional rotating bezel with the Liquidmetal diving scale. The blue ceramic dial is protected by domed and scratch-resistant sapphire crystal and displays silver tone baton and Arabic numeral hour markers, a date window at 6 o'clock and two chronograph sub dials. With a water resistance of 600m, this beautifully made watch is powered by a self-winding chronograph movement with column wheel mechanism and co-axial escapement, an Omega 9900 calibre and a helium-escape valve. Master Chronometer certified, this watch proves its excellence with its sleek design, intricate craftsmanship and essential diving features. O21530465103001