Lady Datejust. Case: 31mm diameter, 18K yellow gold, round shape. Bracelet: Solid 18K yellow gold President bracelet with concealed clasp. Dial: Gray tone dial featuring yellow gold-tone hands and Roman numeral hour markers, date display at the 3 o'clock position. Functions: Analog, hours, minutes, seconds. Movement: Automatic mechanical movement (calibre Rolex 2235) with approximately 48-hour power reserve. Crystal: Scratch-resistant sapphire crystal. Water Resistance: Up to 100 meters / 330 feet.