Shaped to the proportions of the golden ratio, the 5738-1R-001 houses Patek Philippe's Caliber 240 — an ultra-thin self-winding mechanical movement — within a rose gold case measuring 34.5 × 39.5 mm with a slender 5.9 mm thickness. The crown is set with a black onyx cabochon, and a solid case back encloses the movement, with water resistance to 30 m.
The sunburst ebony black dial is mounted on an 18K gold dial plate and dressed with rose gold applied baton-style hour markers, creating a refined interplay of depth and warm metal tone. Every element of the dial's construction reflects the same attention to proportion that defines the Golden Ellipse collection.
Completing the piece is a fully polished rose gold chain-style bracelet comprising 363 elements, of which more than 300 links are individually hand-mounted. The bracelet fastens with an engraved rose gold fold-over clasp offering three adjustment positions, a fitting final detail on one of Patek Philippe's most architecturally distinctive references.
