Oris watch aquis depth gauge oris watches are renowned for producing some of the most beautiful diving watches that the world has ever seen to add to their already well established aquis collection the oris aquis depth gauge promises exactly what its title suggests a patented timepiece which measures ocean depth for you with a unique feature built into the sapphire crystals to allow water to enter the watch with vibrant yellow indexes for depth around the perimeter of the dial and a matchin