Introducing the Aquis Date Calibre 400, a divers watch powered by Oriss game-changing new in-house automatic calibre. Calibre 400 is a highly accurate, highly anti-magnetic, highly reliable movement with a huge five-day power reserve, and comes with 10-year recommended service intervals and a 10-year warranty. Calibre 400 sets the new standard. The Aquis collection of diver’s watches offers real-world functionality in an innovative package, through a combination of considered design, high-performance materials and fit-for-purpose functions.