Yellow gold-tone 18kt yellow gold case with black rubber strap. Fixed tachymeter scale black ceramic bezel. Black dial featuring yellow gold-tone hands and index hour markers, complete with minute outer ring. Powered by Rolex Calibre 4131 automatic movement ensuring a 72-hour power reserve. Equipped with luminescent hands and markers for optimal night-time legibility. Chronograph functions driven by three sub-dials indicating elapsed time: 60-second, 30-minute, and 12-hour dials. Scratch resistant sapphire crystal lens. Screw down winding crown secured with a safety release mechanism. Solid case back included. Classic round 40mm case shape. Water resistant up to 100 meters / 330 feet for general swimming conditions. Functions include analog hour, minute, second and chronograph timekeeping. Supplied complete set: original box, international warranty card, instruction manual (accessories). Part of the Daytona Series in luxury watch style design. Swiss Made quality standard.