Patek Philippe Nautilus Ref. 3700/3 with Factory Diamond Bezel

Introduced in 1976 and penned by Gérald Genta, the Patek Philippe Nautilus rewrote the rules of modern watchmaking by elevating the sports watch to true haute horlogerie: a porthole-inspired silhouette, a water-resistant monobloc case, an integrated bracelet, and an ultra-thin automatic movement that challenged the era’s formal conventions. While the first-generation Ref. 3700 is best known in stainless steel, the early precious-metal executions produced for a far narrower audience sit at the pinnacle of Nautilus collecting.

This Ref. 3700/3 in 18k yellow gold, fitted with a diamond-set bezel, is among the most elusive configurations associated with the “Jumbo” Nautilus. Collecting scholarship generally records only a handful of comparable examples—often cited as fewer than ten—making public price discovery inherently limited and reinforcing its museum-grade, reference-level status within the broader 3700 lineage. The aesthetic tension of a gem-set bezel on a watch conceived as a pure sporting instrument feels strikingly contemporary, anticipating by decades the modern sport-luxury vocabulary, yet grounded in the uncompromising build and design codes of the first series.

The watch is further defined by its correct integrated Gay Frères bracelet, a crucial period hallmark and a major driver of originality and desirability for early Nautilus production. With examples of this specification seldom appearing in open retail channels and more commonly circulating via private transactions or curated auctions, acquisition is typically less about comparison shopping and more about securing an irreplaceable configuration when provenance, correctness, and condition align.