Presented in 2001, the Ref. 5002 Sky Moon Tourbillon is the most complicated wristwatch in the current Patek Philippe collection. The double-face timepiece is endowed with the rarest complications (12 complications and 686 parts). Among other indications, it displays mean solar time and has a perpetual retrograde calendar on the front side. Sidereal time and astronomical functions are shown on the case back side.
The Sky Moon Tourbillon has two fascinating faces -one towards the dial showing mean solar time and a perpetual date, and the other on the base with a map of the night sky, the angular movement of the moon, the moon phases and sidereal time. It incorporates 12 complications. The mechanical module for the astronomical indications on the sky-side dial has been awarded a Swiss patent.
Mechanical, hand-wound, containing 686 hand-finished and hand-assembled components
Hours, minutes, seconds, perpetual calendar with retrograde date, day, month, leap-year cycle, age of the moon, minute-repeater, tourbillon, celestial map, sidereal time, angular movement of moon, and moon phases COSC-certified chronometer, poinçon de Genève
750 (18K) yellow gold or platinum
Front: gold with opalescent silvered coating “Leaf” hands in blued steel and “pear” hands in gold and steel
Back: Sky background represented by a disk of sapphire crystal and “Pear” hands painted white