The Patek Philippe reference 5102 is one of the manufacture's most extraordinary astronomical wristwatches, combining exceptional technical innovation with one of the most visually captivating complications ever created. Introduced in 2002 as part of the prestigious Celestial collection, the 5102 is powered by the automatic Calibre 240 LU CL C, featuring an intricate celestial display that accurately reproduces the night sky as seen from the Northern Hemisphere. The rotating sapphire crystal discs display the apparent motion of the stars, the orbit and phases of the moon, and the meridian passage of Sirius and the moon, while a 24-hour scale and date indication complete this remarkable astronomical complication.

Produced in yellow gold, white gold and rose gold, the reference 5102 is distinguished by its beautifully sculpted case and deeply layered dial, creating a striking three-dimensional representation of the heavens. Combining the ultra-thin micro-rotor Calibre 240 with one of Patek Philippe's most poetic and technically demanding complications, the 5102 has become one of the manufacture's most celebrated Grand Complication references, admired for its exceptional craftsmanship, mechanical ingenuity and breathtaking interpretation of the celestial world.