- The ref. 5905 was first introduced in platinum in 2015. It features a more formal aesthetic by pairing with rich blue (5905P-010) or monochrome black (5905P-001) dials. In 2019, the Maison further launched a pink gold variant with a chocolate brown dial (5905R-001). It was later succeeded by the 5905R-010 in 2023 with a deep blue sunburst dial, like this present example.

- This timepiece is a refined blend of elegance and technical mastery. It creates a bold yet sophisticated look. The polished case design includes signature scalloped lugs and a concave bezel, enhancing its timeless appeal.

- The dial is clean and functional, with gold baton hour markers, luminous dauphine hands, and three apertures for the day, date, and month. A chronograph subdial at the bottom also includes a day/night indicator. The central chronograph seconds hand is now white, improving legibility against the blue background.

- Inside, the watch houses an automatic chronograph movement with a column wheel and vertical clutch. It powers the annual calendar, which only needs adjusting once a year. The movement is beautifully finished and visible through the sapphire caseback.

- This barely-worn present example belongs to the original owner. Its glossy blue crocodile strap with a pink gold buckle completes the look. Patek Philippe’s ability to merge innovation with classic design certainly exemplifies here, making itself a standout piece for collectors and enthusiasts.