"Exploring the dark side of the ocean, OMEGA has evolved its ceramic expertise to produce the Seamaster Planet Ocean “Deep Black”. This remarkable 45.5 mm lifestyle timepiece is the combination of a GMT model and a diving watch. The glossy brushed casebody has been crafted from a single block of ceramic, while the 18K Sedna™ gold bezel features a ceramic bezel ring with a Ceragold™ diving scale. 18K Sedna™ gold is used again to create the crown and helium escape valve, as well as the hands and indexes that are coated in white Super-LumiNova. On the black ceramic dial, a GMT ring has been added, as well as 18K Sedna™ gold Arabic numerals. In another first, OMEGA has created an oriented screw-in caseback so that the engraved wording sits pleasingly in position. This has been achieved through OMEGA’s new and patented ceramic Naiad Lock. Other features include an alveol pattern on the screw-in caseback and a water-resistant leather strap with a rubber lining that has an anti-bacterial treatment. The Planet Ocean “Deep Black” is water-resistant to 60 bar and is driven by the OMEGA Master Chronometer calibre 8906. To achieve Master Chronometer status, it has passed the 8 rigorous tests set by METAS (The Swiss Federal Institute of Metrology)."