Oris Aquis Date Calibre 400 – 43.5 mm Swiss Iconic Watch • In-House Movement • “The New Standard” in Modern Watchmaking The Oris Aquis Date Calibre 400 represents a true milestone in contemporary Swiss watchmaking and is the first model to feature Oris’s revolutionary in-house Calibre 400 movement. Designed as a genuine game-changer, this watch sets a new benchmark for reliability, long-term performance and everyday usability, combining advanced antimagnetic technology with an impressive five-day power reserve. Housed in a robust 43.5 mm stainless steel case and paired with an integrated stainless steel bracelet featuring an innovative extension system, this model is engineered as a professional dive watch while remaining perfectly suited for daily wear. The blue dial with applied luminous indices and hands ensures excellent legibility in all conditions, while the unidirectional rotating bezel with ceramic insert reinforces its technical, purposeful character. This example is offered unworn, complete with its full original set and active Oris warranty. Technical Details Brand: Oris Model: Aquis Date Calibre 400 Reference: Calibre 400 Case: Multi-piece stainless steel case Case Diameter: 43.5 mm Crystal: Sapphire, domed on both sides, anti-reflective coating on the inside Bezel: Unidirectional rotating bezel with ceramic minutes scale insert Dial: Blue, applied indices and hands with luminous material Water Resistance: 30 bar / 300 meters Movement: Swiss automatic Oris Calibre 400 (in-house) Power reserve: approx. 120 hours (5 days) Frequency: 28,800 A/h (4 Hz) Highly antimagnetic construction Functions: Hours, minutes, central seconds, date with instantaneous change Bracelet: Stainless steel bracelet with integrated extension system Lug Width: 24 mm Condition: Unworn Box: Original Oris presentation box Papers: Original papers with Oris international warranty (2 years) Story & Heritage The introduction of Calibre 400 marks one of the most important chapters in Oris’s modern history. Staying true to its independent spirit, Oris developed a completely new in-house movement designed for real-world use—offering longer service intervals, superior resistance to magnetism, and exceptional long-term reliability. The Aquis Date Calibre 400 embodies this philosophy perfectly. More than a certified professional dive watch, it is a modern mechanical instrument built to withstand everyday challenges while delivering outstanding performance. Its advanced antimagnetic properties protect the movement from one of the most common causes of inaccuracy in modern watches, while its solid construction reflects Oris’s commitment to practical, honest engineering. For collectors and enthusiasts, this model represents the beginning of a new era for Oris—an era defined by innovation, independence, and functionality without compromise. A watch that does not follow trends, but confidently sets its own standards. Express Delivery Via UPS Express Internal Reference Number - ORS-10