18kt yellow gold case, black rubber strap. Fixed cerachrom bezel with tachymeter markings. Black dial featuring luminous gold-tone hands and index hour markers. Minute markers around the outer rim. Analog display. Luminescent hands and markers for enhanced readability in low light conditions. Chronograph movement with three sub-dials: 60 second, 30 minute, and 12 hour. Powered by Rolex Calibre 4130 automatic movement ensuring precise timing with a 72-hour power reserve. Scratch-resistant sapphire crystal provides exceptional clarity and durability for the watch face. Screw down crown allows safe replacement of the gasket. Solid case back protects internal mechanisms. Case size is 40 mm, round shape. Equipped with Oysterlock clasp for added security. Water resistant up to 100 meters / 330 feet depth suitable for recreational diving.