Rolex Oyster Perpetual Date Radial Blue Dial Reference 1500. Precious and very difficult to find Rolex Oyster Perpetual Date from the year 1971 serial number 2XXXXX with Radial dial in blue color, 34 mm steel case, plexi glass, steel osyter bracelet with original folding clasp from the year 71. Rolex COSC automatic movement. With Rolex box. With one year warranty.