Omega Calibre 8800 Co-Axial Master Chronometer movement with 55-hour power reserve and date function, round 40mm stainless steel case with yellow gold steel bracelet and deployment clasp, silver dial featuring Roman numeral/diamond hour markers on a yellow gold tone background, scratch-resistant sapphire crystal glass front, water resistance to 30 meters (100 feet), comes with a 2-year WatchMaxx warranty.