Introduced as part of the lineage born from the legendary Nautilus, this Patek Philippe reference 3770/11 JA-SOI offers a fascinating interpretation of the iconic nautical design language, blending steel and gold in a refined and unmistakably 1970s spirit. Often referred to among collectors as the “Nautellipse” due to its hybrid design codes, the model harmoniously merges the characteristic tension of Gérald Genta’s Nautilus case profile with the elegant, softer lines of Patek Philippe’s Ellipse d’Or.

The present example stands out through its beautifully preserved two-tone grey dial, displaying a subtle concentric contrast between the darker central oval and the lighter surrounding sector. The minimalist yellow-gold applied indexes pair elegantly with a later service set of luminous hands in Luminova, providing enhanced night-time readability while maintaining a coherent aesthetic within the original design language.

The case and integrated bracelet in steel and & 18K yellow gold remain clean and crisp, maintaining strong bevels and the original satin finish, with polished highlights enhancing the bracelet’s stepped construction. Powered by a highly precise quartz movement no. 1'506'612, this configuration reflects the forward-thinking approach Patek Philippe embraced in the late 1970s and early 1980s, bringing high-horology design to the emerging world of electronic calibers.

Accompanied by service papers, and bearing case number 553'154, this example presents a rare opportunity to acquire a reference produced in notably limited quantities and increasingly appreciated for its unique role in the Patek Philippe design evolution.

A sophisticated two-tone creation with distinctive “Nautellipse” architecture and a stylish grey double-tone dial, this Ref. 3770/11 combines rarity, elegant presence, and historical design significance, an attractive and characterful choice for the discerning collector seeking a less conventional yet deeply authentic chapter of Patek Philippe’s legacy.