40mm 18K white gold case, screw-down back, screw-down crown with triplock triple waterproofness system, diamond bezel, scratch-resistant sapphire crystal scratch-resistant sapphire, white and black mother-of-pearl dial, diamond hour markers, 4131, manufacture Rolex perpetual, mechanical chronograph, self-winding movement with, approximately 72 hours of power reserve, Oysterflex strap made from flexible metal blades overmoulded with high-performance elastomer, folding Oysterlock safety buckle with rolex glidelock extension system. Waterproof to 100 metres / 330 feet.