Oris Returns to the Deep with Second-Generation Aquis Depth Gauge Divers’ Watch
Oris added the Aquis Depth Gauge, an innovative divers’ timepiece that measured depth while its wearer was submerged, to its lineup in 2013. The Hölstein, Switzerland-based watchmaker has made small adjustments to the model in the years since, but this year, it has updated it in three key areas that improve both its performance in the water and its versatility on the wrist. Here’s what you need to know about the second-generation Oris Aquis Depth Gauge.
Aquis Depth Gauge on rubber strap
Like its predecessors, the latest version of the watch uses a patented system based on the principle of the Boyle-Mariotte law ? named for the two scientists who discovered it ? which states that if the volume of a gas is decreased, the pressure increases proportionally. In practice, that means the watch?s sapphire crystal, which is a full 50 percent thicker than an average one, has small hole drilled into it at 12 o’clock, allowing water into a channel milled around its outer edge running counterclockwise to the dial. As a diver descends underwater while wearing the watch, a rubber gasket seals the joint between crystal and case while the water in the channel creates a watermark that corresponds to a gauge indicated in yellow on the dial. This clever functionality has earned the Aquis Depth Gauge the nickname, “the watch with a hole.”
The yellow gauge reveals the water’s depth.
The folding clasp has an adjustable extension.
The first of t...
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