Oris Aquis Depth Gauge

Oris has unveiled the second generation of its Aquis Depth Gauge, an innovative high-performance diver’s watch. Nicknamed “the watch with a hole”, it uses the scientific principles of the Boyle-Mariotte Law to create a gauge that clearly measures depth during a dive. The patented system works by allowing water through a hole cut into the sapphire crystal at 12 o’clock and into a channel milled around the outer edge of the crystal. This creates a watermark that corresponds to a gauge indicated in yellow on the dial.