Silver-tone stainless steel case, fixed silver-tone bezel. Green dial featuring silver-tone hands and index hour markers with minute markers around the outer rim. Analog dial type equipped with luminescent hands and markers for enhanced readability in darkness. Powered by Rolex Calibre 2232 automatic movement containing 31 jewels, beating at 28800 vph (4Hz), offering a power reserve of about 55 hours. Features a scratch-resistant sapphire crystal glass, screw-down crown, solid case back, and round shape measuring 31 mm in diameter. Equipped with Oysterlock clasp system, water resistance up to 100 meters / 330 feet, functions include hour minute second indication and chronometer certified accuracy. Sport watch design from the Oyster Perpetual 31 series, Swiss Made.