18kt white gold case with a silver-tone 18kt white gold bracelet. Features a blue diamond set bezel insert and a pave dial surface marked with index hour markers including minute markers around the outer rim. Analog display, luminous hands for enhanced readability in low light, date window at the 3 o'clock position. Powered by Rolex Calibre 3135 automatic movement containing 31 jewels beating at 28800 vph (4 Hz), offering a power reserve of about 48 hours. Equipped with scratch-resistant sapphire crystal and a screw-down crown for water resistance up to 300 meters / 1000 feet, which is approximately the depth equivalent to an underwater dive watch. Solid case back included. Classic round shape in size 40 mm. Includes Oysterlock clasp mechanism.