AQUISPRO DATE CALIBRE 400 - 01 400 7767 7754

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Natural home for Oris’s high-performance Calibre 400

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. 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. 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 low-light legibility.

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.


  • REFERENCE 01 400 7767 7754-07 426 64BTEB
  • CASE Aquis, 49.50 mm , Titanium / black DLC plated
  • MATERIAL Multi-piece titanium case, black DLC plated, ceramic minutes scale top ring
  • SIZE 49.50 mm
  • TOP GLASS Sapphire, domed on both sides, anti-reflective coating inside
  • CASE BACK Titanium, black plated, screwed, special printings/markings
  • OPERATING DEVICES Stainless steel screw-in security crown, black DLC plated
  • MOVEMENT Automatic winding date developed by Oris
  • NUMBER Oris 400
  • DIMENSIONS Ø 30.00 mm, 13 1/4’’’
  • FUNCTIONS Centre hands for hours, minutes and seconds, date window, instantaneous date, date corrector, fine timing device and stop-second
  • WINDING Automatic winding
  • POWER-RESERVE 120 hrs
  • VIBRATIONS 28’800 A/h, 4 Hz
  • JEWELS 21
  • DIAL Black
  • MATERIAL Black dial printed wave structure
  • LUMINOUS MATERIAL Indices and hands Superluminova BG W9 Grade A
  • MATERIAL Black rubber strap, titanium folding clasp black plated with extension

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