1978 rolex air king cal 1520 model # 5500 serial # 5295237 Rolex Oyster Perpetual Air-King automatic watch. Serviced at the German Watchmaker in Vancouver. Solid stainless steel case in great condition. Outstanding and nicely patina factory original dial. The original set of index hands is in excellent condition. Aged sweep-second hand has been cleaned. For a great value, this watch will come professionally serviced and ready for everyday wearing. The high-grade automatic movement is a Rolex calibre 1520. The case model on this watch is 1002/5500 and measures 34.5mm across excluding the crown by 40mm lug tip to lug tip. The case serial number is 5295237, dating this timepiece to 1978. A new case gasket and a case tube gasket have been replaced on the watch. Gasket replacement is essential to protect a watch from moisture. The screw-down crown is original and signed. Crystal is in excellent condition. It will come with two 19mm straps, one ostrich, and one lizard. Buckle is signed but not genuine. PRODUCT INFO Circa: 1978 Model: OP AIR KING Calibre: 1520 Movement serial #: N/A Jewel count: 26 jewels Movement Type: Automatic wind Case model: 1002/5500 Case Material: Solid stainless steel Case gasket: Flat-ring rubber gasket Crystal: Acrylic crystal Crown: Signed Case Diameter excluding crown: 34.5mm Case length lug tip to lug tip: 40mm Dial: Factory original finish Hand type: Index (original) Strap width between lugs: 19mm