ORIS – AQUIS AQUISPro Date Calibre 400 Black Titanium 2021
Oris’s professional diver’s watch, the AquisPro Date, is the latest watch to be equipped with Oris’s in-house Calibre 400 movement. Boasting elevated levels of anti-magnetism, superior accuracy compared to a chronometer, a five-day power reserve and a 10-year guarantee, Calibre 400 is the new standard in Swiss Made automatic mechanical movements.
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The AquisPro Date is a natural home for Oris’s high-performance Calibre 400. Designed to serve professional divers on saturation dives, it’s 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.
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Among its special features is Oris’s 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 uni-directional rotating bezel into place. This means that during a dive they can read off remaining dive time with absolute certainty.
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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.
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The new AquisPro Date Calibre 400’s spec list continues with a high-grade, lightweight titanium case plated in low-glare black DLC that makes its 49.50 mm case diameter extremely comfortable on the wrist.
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Titanium is also used for the rubber strap’s folding clasp, where you’ll find two more exclusive Oris innovations. The patented Oris 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.
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The rubber strap also features the Oris Safety Anchor, developed by Oris 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. Innovations such as these have made the AquisPro a long-standing favourite with professional divers.
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Oris’s independence creates the freedom to develop and engineer high-performance movements and devices such as those found on the AquisPro Date Calibre 400. The new watch becomes one of the highest spec Swiss Made mechanical diver's watches ever produced.
Calibre-400
Oris Calibre 400 sets The New Standard in mechanical watchmaking. Conceived entirely in-house by the independent Swiss watch company’s skilled engineers, it has a five-day power reserve, elevated levels of anti-magnetism, and comes with a 10-year warranty and 10-year recommended service intervals. Here’s how it works.
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Five-day power reserve
When a standard mechanical watch is laid down for a day or two, it will stop as the power reserve runs down. Calibre 400 has a five-day power reserve, so it’ll still be running if it’s not been worn between, say,
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Thursday and Tuesday. It delivers this longer period of use via twin barrels, both of which house an extended mainspring, each long enough to store two-and-a-half days of power.
A more stable rotor system
One of Oris’s fundamental ambitions with Calibre 400 was to eliminate problems before they occur. Oris’s 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 (or rotor) to rotate.
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This is a critical element of an automatic watch – as the rotor spins, it generates power that’s stored in the mainspring, which is housed in the barrel. So we removed the ball bearing altogether and replaced it with a low-friction slide bearing system, in which a metal stud runs through a lubricated sleeve.
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This is much less complex, highly efficient, and involves far less wear and tear, making it less prone to breakdowns.
10-year warranty and recommended service intervals
Oris is so confident in the performance of the advanced technologies integrated into Calibre 400 that we are offering a 10-year warranty on all Oris watches powered by the new movement once
registered with MyOris.
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In addition, Oris is also proposing 10-year recommended service intervals on Calibre 400 watches. This means that barring accidental damage or water-resistance checks, a Calibre 400 watch won’t need servicing until 2030 at the earliest. This is The New Standard.
Elevated resistance to magnetic fields
Most Swiss watch movements will be magnetised if exposed to strong magnetic forces. When this happens, they become less accurate, and can stop altogether.
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To make it highly anti-magnetic, Oris engineered Calibre 400 using more than 30 nonferrous and anti-magnetic components, including a silicon escape wheel and a silicon anchor. In testing by the renowned Laboratoire Dubois, Calibre 400 deviated by less than 10 seconds a day after exposure to 2,250 gauss.
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For context, the latest version of the ISO 764 standard for antimagnetic watches requires that to qualify as antimagnetic, a watch must be accurate to within 30 seconds a day after exposure to 200 gauss. Calibre 400 recorded one third of the deviation allowed after exposure to more than 11 times the force permitted, making it a highly anti-magnetic movement.
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TECHNICAL SPECIFICATIONS
Collection: DIVING
Model: AQUIS AQUISPro Date Calibre 400 Black Titanium
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Ref. No. 01 400 7767 7754-07 4 26 64BTEB
Material Multi-piece titanium case, black DLC plated,
ceramic bezel insert with engraved minutes scale
Size 49.50 mm, 1.948 inches
Top glass Sapphire, domed on both sides, anti-reflective coating inside
Case back Titanium, black DLC plated, screwed, special markings
Operating devices Stainless steel screw-in security crown, black DLC plated
Water resistance 100bar 🌊(1,000 m)
Interhorn width 26 mm
Movement
Number Oris Calibre 400
Dimensions 30.00 mm, 13 ¼’’’
Power reserve 120 hours
Vibrations 4 Hz (28’800 A/h)
Jewels 21
Functions
Centre hands for hours, minutes and seconds, date window, instantaneous date,
date corrector, fine timing device and stop-second Winding Automatic
Dial
Design Black dial with wave motif
Luminous material Indices and hands with Super-LumiNova®
Indices Applied
Strap
Material Black rubber, black DLC-plated titanium folding clasp black with Sliding Sledge Clasp extension and Safety Anchor
Retail
Availability April 2021
Swiss Retail price CHF 4’200
🟦 The Oris Guarantee
Oris’s engineers developed Calibre 400 to meet the demands of today’s watch wearer. It makes three key performance promises
🔳 Anti-magnetic
Calibre 400 has more than 30 antimagnetic components and exceeds the norms required by the ISO 764 enhanced antimagnetic standard.
🟩 Five-day power reserve
For many reasons, you may not wear a mechanical watch every day. Calibre 400 has a five-day power reserve so it’s ready to go when you are.
🟥 A 10-year warranty
A modern luxury watch should be reliable. Any Oris watch carrying Calibre 400 is guaranteed for 10 years when you register it at MyOris.
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