The Aquis is Oris’ best-selling watch range, and this particular model doubles down on features that put it in the deep end of the “tool watch” category. It’s geared towards saturation divers, with features like the Rotation Safety System, a mechanism that locks the ceramic bezel until the diver carefully unlocks the bezel by lifting it and turning it. The case is made from titanium and DLC-coated, and the rubber strap employs the Oris Safety Anchor, a redundancy system which ensures the watch stays on a diver’s wrist even if the clasp slips open.