The early 1970s marked a fascinating transition for haute horlogerie. While the industry was beginning to chase experimentation and bold geometries, Patek Philippe responded with something far more refined: proportion, restraint, and elegance. The Ellipse line became the maison’s answer to timeless design, built around the harmony of the golden ratio and shaped with an aesthetic that still feels incredibly modern today.

This Ref. 3566/1 perfectly captures that philosophy. Its softly squared case with rounded edges creates a silhouette that sits somewhere between jewellery and watchmaking, made even more striking by the ultra-thin white gold construction. Measuring approximately 28 x 28 mm with an exceptionally slim profile around 4.5 mm, the watch wears with the discreet confidence only vintage Patek can deliver.

The integrated 18ct white gold bracelet is one of the highlights of the piece. Entirely finished with an intricate bark-effect texture, it transforms the watch into a true period statement, unmistakably 1970s yet remarkably sophisticated. Its generous length and multiple adjustment positions make it surprisingly versatile on the wrist, while preserving the seamless continuity between case and bracelet.

The dial offers a beautiful contrast: a soft white surface developing warm cream tones over time, paired with elegant black Roman numerals that reinforce the graphic purity of the design. Inside beats the hand-wound caliber 175, one of Patek Philippe’s celebrated ultra-thin movements, freshly serviced and running exactly as it should.