Oriss professional divers watch, the AquisPro Date, is the latest watch to be equipped with Oriss in-house Calibre 400 movement. Boasting elevated levels of anti-magnetism, superior accuracy compared to a chronometer, a five-day power reserve and a 10-year guarantee, Calibre 400 is the new standard in Swiss Made automatic mechanical movements.Multi-piece titanium case, black plated, minutes scale top ring, Black rubber strap, titanium folding clasp black plated with extension, Black dial printed wave structure47.00 mm, 1.85 inches, Sapphire, domed on both sides, anti-reflective coating inside