18kt white gold case, blue leather strap. Fixed 18kt white gold bezel. Analog dial with blue background, silver-tone hands and index hour markers (including day/night functionality). Minute markers around the outer rim. Luminescent coating on hour indexes and hands for enhanced legibility in low light conditions. Date display at the 3 o'clock position, day display at the 12 o'clock position. Powered by Rolex Calibre 3155 automatic movement (based on Calibre 3055), featuring 31 jewels, a bitting rate of 28800 vph, and approximately 48 hours power reserve. Scratch resistant sapphire crystal. Screw down crown with winding mechanism. Solid case back. Round case shape measuring 36 mm in diameter. Deployment clasp closure system. Water resistant to 100 meters (approximately 330 feet) depth. Functions include hour, minute, second, date display at the 3 o'clock position and day date display at the 12 o'clock position.