Oris is proud to announce the second-generation Aquis Depth Gauge, one of the worlds most innovative and most distinctive high-performance divers watches. Known affectionately asthe watch with a hole, the Aquis Depth Gauge 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 oclock and into a channel milled around the outer edge of the crystal. This creates a watermark that corresponds to a gauge clearly indicated in yellow on the dial. The new model captures and refines the spirit and functionality of the original, delivering even higher performance when it really mattersdeep below the ocean surface. The new Aquis Depth Gauge has three key improvements: Firstly, the depth gauge system in the new watch, the process used to mill the channel into the outer edge of the crystal has been refined so the accuracy and legibilit