In 2001, Patek Philippe applied this remarkable know-how to a wrist timepiece, releasing reference 5002 “Sky&Moon”. Previously, the most complicated wristwatch made by Patek Philippe was reference 5016, incorporating tourbillon, minute repeater, moonphases and retrograde perpetual calendar. While this was an enormously complex timepiece, it still remained in the realm of “normal” high-end horology, both for the set of complications and for the case design. Reference 5002 was instead in a class of its own. Inspired by the pocket timepiece Star Caliber 2000, Patek Philippe miniaturised the model into a wristwatch that features a double dial with cathedral gong minute repeating mechanism and tourbillon. The front facing side displayed the time along with the perpetual calendar with retrograde date and age of the moon. The reverse with celestial chart including horizon ellipse, meridian passage of Sirius, age and angular motion of the moon and sidereal time. A new addition was the cathedral minute repeating mechanism. Developed by Patek Philippe using a new steel alloy for extended gongs, the repeat was longer and more harmonious.

Ref. 5002, 5002P-001, 5002P, 5002R, 5002G-010, 5002G, Etc.