Vintage : approx 1958-1960 ! Rolex Oyster Perpetual Air-King Precision model 6552 in stainless steel with original silver / index dial. This 1030 calibre model has a case-back stamped in the second quarter of 1958, consistent with its 423xxx case number, but typically these could be found on watches sold any time around 1960. We ask you to note that : (1) the dial shows some staining / marks which reflect its age (2) we no longer guarantee these older, plastic glass models to be water-resistant and (3) the ostrich leather strap and and base-metal pin-buckle are both generic parts, NOT made by Rolex. It comes with a certificate from the ALR Watch Register confirming that we checked it with them, our own presentation box and warranty card.