Designed for saturation dives, the AquisPro Date is a highly technical tool watch chosen by divers who work on complex engineering projects in helium-enriched environments hundreds of metres below the water's surface.
Oris has raised the bar in mechanical watchmaking by equipping the professional diver's watch with the automatic winding Calibre 400.
The new 49.5mm AquisPro Date Calibre 400 is housed in a high-grade, lightweight titanium case plated in low-glare black DLC. The black dial boasts a wave motif, with indices and hands coated with Super-LumiNova.
Conceived entirely in-house, the Calibre 400 has a five-day power reserve, delivered by the use of twin barrels, both of which house an extended mainspring, each long enough to store two-and-a-half days of power.
One of Oris' fundamental ambitions with the Calibre 400 was to eliminate problems before they occur. Its engineers identified that one of the most frequent issues with automatic mechanical movements concerns the ball-bearing system that allows the free-spinning oscillating weight to rotate.
The ball bearing has been replaced by a low-friction slide bearing system, in which a metal stud runs through a lubricated sleeve. This is much less complex, highly efficient, and involves far less wear and tear, making it less prone to breakdowns.
The elevated resistance to magnetic fields is rendered by using more than 30 nonferrous and anti-magnetic components, including a silicon escape wheel and a silicon anchor.
Besides the high-performance movement, the model is equipped with the patented Rotation Safety System, known as RSS. This exclusive Oris device, commissioned by the professional diving community, enables the wearer to adjust and lock the unidirectional rotating bezel into place. This means that during a dive they can read off remaining dive time with absolute certainty.
A chunky rubber grip makes it easy to operate, even when gloved, while a yellow and white minutes scale engraved into the scratch-resistant ceramic bezel insert delivers high levels of lowlight legibility.
Titanium is also used for the rubber strap's folding clasp featuring two exclusive Oris innovations. The patented Sliding Sledge Clasp can be adjusted to very fine tolerances without taking the watch off, so that when getting in or out of even the thickest wetsuit, you can loosen or tighten the strap hassle-free.
The Oris Safety Anchor was developed so that in the event the clasp is released unintentionally, two hooks grab the strap so the watch stays attached to the wearer's wrist.
Water resistant to 1,000m, the AquisPro Date Calibre 400 comes with a 10-year warranty and recommended service intervals.
