The second and final installment of watches I missed at Basleworld but were able to see during Las Vegas Jewelry Week, deals with a specialty watch called the Aquis Depth Gauge from Oris. According to the Swiss watch brand, it is the first dive watch that measures depth by allowing water to enter the timepiece.
The company says it has applied "Boyle Mariotte Law" (which describes how the pressure of a gas tends to decrease as the volume of a gas increases) to the patented timepiece. The watch has a gray-colored channel milled into the side that runs counterclockwise around the dial, stopping between one and two o'clock. At 12 o’clock there’s a small opening. On descent, the air inside the channel is compressed by the surrounding water pressure, allowing water to enter through the opening. The edge, in light grey and dark grey, differentiates between water and compressed air on the scale around the outside of the dial, indicating depth while descending or ascending.
Besides being a cool addition to a diver’s watch, Oris says the depth gauge keeps divers safe as the indicator benefits from no inertia, so actual depth readings are seen instantly, which is useful in decompression breaks in lesser depths. It’s water-resistant to 500 meters/50 bar.
Other features of the watch include an automatic movement with a date window at 6 o’clock. The 46mm watch also comes with a waterproof case that contains interchangeable rubber and metal straps and tools.
The cost is approximately $3,200.
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