Patek Philippe Aquanaut Ref. 5167/1A-001 The Patek Philippe Aquanaut ref. 5167/1A-001 is the 40.8 mm steel Aquanaut on its integrated steel bracelet, with the embossed black dial of the collection. The reference is no longer part of Patek Philippe's collection. - Self-winding calibre with date (324 S C) - 40.8 mm steel case - Embossed black dial - Integrated steel bracelet with fold-over clasp Full set. Maker: Patek Philippe. Reference: 5167/1A-001. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request.