As the name suggests, OMEGA’s Ultra Deep dive watches are designed and engineered to perform at extraordinary depths. <p> Positioned at the cutting‑edge of dive watch technology, the collection takes its cues from prototype watches that survived and thrived under extreme conditions at the bottom of the Mariana Trench, the deepest place on Earth. <p> These Swiss‑made dive watches are essentially the record‑breaking Ultra Deep concept watches, used by the Five Deeps Expedition team, repurposed into new 45.5 mm models available to the public. <p> Tested in real ocean conditions, every sports watch in this incredible range is water‑resistant to 6,000 metres (20,000 ft.) and certified to meet the ISO 6425 standard. <p> Made from innovative watchmaking materials such as OMEGA’s own O‑MEGASTEEL and titanium, these tough and stylish Co‑Axial Master Chronometer timepieces are the perfect choice for deep‑sea divers, ocean adventurers, extreme sports fans, and passionate collectors.