Men's Patek Philippe Grand Complications Sky Moon Tourbillon hand-wound watch with brown dial and alligator strap in an 18kt rose gold case. Features a perpetual calendar, sidereal time indication, sky chart dials displaying celestial positions based on the reference date provided by the wearer. Equipped with a tourbillon function for measuring sidereal time accurately. Movement is Patek Philippe Calibre R TO 27 QR LU CL hand wind, featuring perpetual calendar, moon phase (including leap year functionality), day/night indicator via apertures in Roman numerals on the brown dial. Hand-wound mechanical movement with approx. 48-hour power reserve running at 21600 vph and composed of 705 parts including 55 jewels. Case size is 44mm, thickness 17.35mm, bezel fixed in solid 18kt rose gold. Comes complete with original box, warranty card, manual.