Patek Philippe introduced the Aquanaut in 1997. At the time of its release, the watch, with its unique case shape, was unlike any other timepiece on the market. Today, many luxury watch enthusiasts strive to add the unique Aquanaut to their collections. The ref. 5167/1A is a steel-on-steel example of the model that includes a handsome black embossed dial, water-resistance up to 120 meters, and a cal. 324 S. C. automatic movement with a date mechanism and sweeping seconds. The movement is visible via the exhibition case back, making this edition of the Aquanaut an exciting watch to examine and wear. This ref. 5167/1A is a rare opportunity to add the highly coveted Aquanaut to your collection in MINT and UNWORN condition. Shop Patek Philippe Aquanaut Collection