Measuring 42.2 mm in diameter, this self-winding Aquanaut combines a white gold case with an embossed dial featuring a subtle gradient running from black to midnight blue. The displays are extremely legible both day and night, with luminescent white gold hands and applied Arabic numerals. Maker: Patek Philippe. Reference: 5168G-001. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request.