The Aquis Date Calibre 400 41.5 mm diver?s watch is powered by our Calibre 400 five-day automatic, one of our Calibre 400 Series of future-proofed movements that also promises elevated levels of anti-magnetism and extreme reliability. The Aquis Date Calibre 400 41.5 mm is a diver?s watch with a five-day automatic movement. It has a rotating bezel, screw-down crown, extendable clasp, and 30 bar water resistance. It features a three-link bracelet and simple dial detailing. Suitable for deep sea and desk use. The Oris Calibre 400 Series, a Swiss Made mechanical design, offers a five-day power reserve, high anti-magnetism, and 10-year service intervals. Watches with this movement have a 10-year warranty (with sign-up to MyOris). A game-changer. And that?s why we call it The new standard. Multi-piece stainless steel case, ceramic minutes scale top ring.Sapphire, domed on both sides, anti-reflective coating inside.Stainless steel, screwed, see-through sapphire glass. Size 41.50 MM Water Resistance 30 BAR Interhorn Width 22MM