18kt yellow gold case, 18kt yellow gold oyster bracelet. Bi-directional rotating bezel (18kt yellow gold). Champagne dial featuring yellow gold-tone hands and Arabic numeral hour markers with minute markers around the outer rim. Analog dial type. Saros annual calendar function including month indicator. 24-hour GMT sub-dial at the 6 o'clock position. Equipped with the Rolex Calibre 9001 automatic movement offering a 72-hour power reserve. Sapphire crystal provides scratch resistance and clarity. Screw-down bezel, solid case back. Round shape in yellow gold (18kt). Case size is 42mm. Oysterlock clasp included. Water resistant to 100 meters / 330 feet. Functions include annual calendar, GMT with second time zone selection, month, date, hour, minute and central seconds subdial; chronometer certified.