Aquis Pro 4000m

The Oris Aquis Pro 4000m is Oris’s most water-resistant watch, certified to an extreme 4,000 m / 400 bar depth rating, powered by the in-house Calibre 400 with a 5-day power reserve. Its oversized 49.5 mm titanium case, 23.4 mm thickness, and professional-grade features like a ceramic safety bezel and double-domed sapphire crystal position it as a flagship ultra-deep tool watch. For collectors, it embodies Oris's independent engineering ethos in contemporary extreme-depth dive watches.