Patek Philippe Aquanaut Patek Philippe Aquanaut Ref 5167A/001 Steel men's wristwatch, grey dial, Arabic numeral hour markers, date window at 3 o'clock. Mechanical self-winding movement NĄ3908807 calibre 324/393. Steel bracelet consisting of 13 links with its signed steel folding clasp. Signed dial case and movement. No box and no papers. Diameter: 40mm At the date of the catalogue the movement is working and in near new condition.