The Aquis Date Calibre 400 41.5 mm returns with two new executions enriched with a touch of solid gold. Both the forest green and deep blue versions have an 18-carat gold finish to the outer edge of their uni-directional rotating bezels, and gold-coloured hands and indexes. Even the minutes scale on the green or blue ceramic bezel is golden, completing the balanced, coherent look of the design. Both watches come with a stainless steel bracelet and a rubber strap in matching green or blue that can be easily switched using Oris' patented Quick Strap Change system, with no tool required. All this wraps the game-changing Calibre 400 automatic, which provides the watch with elevated levels of anti-magnetism, a five-day power reserve and 10-year recommended service intervals.