The Ultra Deep, part of the 2019 Five Deeps Expedition, is water-resistant to 6,000 meters and meets ISO 6425:2018 standards. This 45.5 mm O-MEGASTEEL model features a black ceramic bezel with a Liquidmetal™ diving scale, and a gradient blue-to-black dial with 18K white gold hands and markers coated in Super-LumiNova. The watch is set on an O-MEGASTEEL bracelet with a foldover clasp and diver extension. The caseback has a laser-engraved Sonar emblem, and it’s powered by the OMEGA Co-Axial Master Chronometer Calibre 8912.