Mens Rolex Cosmograph Daytona watch, 18kt yellow gold case (40mm diameter), 18kt yellow gold tachymeter engraved bezel, black or brown crocodile leather strap with 18kt yellow gold deployant fliplock clasp, black mother of pearl dial with applied gold Roman numerals and three registers, 44 jewel self-winding mechanical Oyster Perpetual chronograph movement, special screw-down crown and pushbuttons, scratch-resistant sapphire crystal, water-resistant to 100 meters.