Introducing the new Aquis Date Calibrer 400 in 43.5mm. Every detail in the new Aquis Date Caliber 400 43.50 mm has been refined to be more ergonomic and more beautiful. Why? To deliver a watch you can take with you wherever you go. Think of it as a luxury everyday toolwatch. And a watch that brings joy. A diver’s watch powered by Oris’s 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.