The Oris Aquis Depth Gauge Watch is back. Fondly known as “the watch with a hole”, this next generation model delivers even better performance.
The Aquis Depth Gauge is a diver’s watch with a depth gauge function that 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 into the watch through
an opening in the sapphire crystal at 12 o’clock. The water enters 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.