13 Patek Philippe An outstanding and extremely important, Celestial, sky chart, phases, orbit of the moon, time of meridian, astronomical, automatic wristwatch in platinum and pink gold, certificate of origin and presentation box, reference 5102PR.

Estimate: € 160.000 –⁠ 320.000

Breaking from the conventions of traditional haute horlogerie, Patek Philippe’s reference 5102 “Celestial” is an arresting symphony of astronomy, engineering, and emotion. Introduced in 2002, this watch does not aim merely to tell the time, but to evoke the majesty of the night sky, framed poetically within a 43mm case. It sits comfortably alongside the Skymoon Tourbillon and other grand complications in the firm’s pantheon of modern marvels, not only for its technical prowess but for the dreamlike quality it inspires. One need not be an astronomer to fall under its spell; the Celestial entices its wearer into quiet wonder, transforming the wrist into a window toward the heavens. The reference 5102PR, a rare and particularly enchanting variation produced briefly from 2009 to 2012, elevates the visual drama with a dual-metal case, its polished platinum bezel and caseback forming a radiant contrast to the warm pink gold caseband, which is elegantly engraved with Calatrava crosses. The dial, constructed from three rotating sapphire discs, charts the sky as seen from Geneva’s latitude, with a rotating ellipse that subtly maps the passage of the stars. The sidereal display is not merely accurate—it is poetic in motion. The luminous moonphase aperture drifts through its cycle with astronomical precision, while Sirius, the brightest star in the night sky, is discreetly highlighted by a golden indicator. With fewer than 100 examples believed to exist and less than 20 publicly known, this particular Celestial, preserved in superb condition, stands as a masterstroke of horology that merges scientific accuracy with the ineffable beauty of the cosmos.