Silver-tone stainless steel case; Two-tone (silver-tone and yellow gold-tone) stainless steel and 18kt yellow gold oyster bracelet; Bi-directional rotating time-lapse bezel in yellow gold-tone with an 18kt yellow gold insert; White dial featuring yellow gold-tone hands, index hour markers, and minute markers around the outer rim; Analog dial type with luminescent finishing on the hands and markers for night readability; Date display at the 3 o'clock position; Powered by Rolex Calibre 3135 automatic movement containing 31 jewels operating at 28800 vph (beats per hour); Approximate 48-hour power reserve; Scratch-resistant sapphire crystal; Screw-down bezel; Solid case back; Round case shape measuring approximately 40 mm in diameter; Fold-over clasp equipped with a safety release mechanism; Water resistant up to 100 meters / 330 feet (suitable for professional diving); Functions include date, hour, minute, second and chronometer indication.