Patek Philippe Aquanaut 5167A-001 Black Dial Stainless Steel Patek Philippe Aquanaut 5167A-001 Black Dial Stainless…

Pricing basis: This catalogue estimate is based on a US dealer offer reviewed on September 21, 2026 for a 2023 watch described as true new old stock, with an uncut strap, new buckle, full set and hang tag. Availability, exact condition, accessories and final terms require confirmation before purchase.

The Patek Philippe Aquanaut 5167A-001 is the 40.8mm stainless steel Aquanaut with the embossed black dial and black tropical composite strap — the reference most people mean when they say “steel Aquanaut”. It uses a self-winding movement visible through a sapphire display back; the calibre depends on production generation.

Which Aquanaut is which. The 5167A-001 is 40.8mm steel on the rubber-style tropical strap. The 5167/1A-001 is the steel-bracelet configuration. The 5168G is the larger 42.2mm white gold version. Older 5065 examples are the previous, smaller generation with a different case and dial layout. And the Aquanaut is not a Nautilus: both are sports-watch families from Patek, but the Aquanaut has a rounded octagonal bezel, an embossed “tropical” dial and a composite strap, where the Nautilus has a porthole-inspired case and horizontally embossed dial; bracelets and straps vary by reference.

Specifications. 40.8mm stainless steel case, rounded octagonal bezel with brushed top and polished flanks. Black dial with Patek's embossed checkerboard relief, applied luminous Arabic numerals, date at 3 o'clock. Self-winding movement; Patek Philippe documented calibre 324 S C in 2021 and lists calibre 26-330 S C for the current model. Confirm the movement, applicable seal and water-resistance specification against the production year and documentation of the sourced watch. Screw-down crown with the Calatrava cross. Black tropical composite strap with a matching embossed pattern and folding clasp. Sapphire display case back.

Why the dial is the whole watch. The embossed grid is not printed. It is stamped into the dial as genuine relief, so the squares catch and drop light as the wrist moves, and the black shifts between charcoal and dead flat. It is the reason the 5167A photographs poorly and wears exceptionally well — in person the dial has depth that no product image conveys.

Compare it across every Aquanaut reference in our catalogue, or browse the full Patek Philippe collection at Bizak & Co.

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