Silver-tone stainless steel case with an engine-turned silver-tone stainless steel bezel. Features a white dial with luminous hands, Arabic numerals and stick hour markers, minute indices around the outer rim. Includes screw-down crown, solid case back; round shape measuring 34.5 mm in diameter. Powered by Rolex Calibre 3130 automatic movement (28800 vph), contains 31 jewels with approximately 48 hours power reserve. Equipped with scratch-resistant sapphire crystal and is water resistant to 100 meters / 330 feet.