Patek Philippe 44mm Grand Complications Celestial Moon Age Rose Gold 6102R-001

Patek Philippe 44mm Grand Complications Celestial Moon Age Rose Gold 6102R-001 The Patek Philippe 6102R-001 is a horological masterpiece that translates the vastness of the cosmos onto the wrist. Launched as the successor to the famous 5102, this 18k rose gold astronomical watch features a substantial 44mm case that serves as a canvas for one of the most poetic complications in watchmaking. The dial consists of three metallized sapphire crystal discs that rotate at different speeds to depict the exact configuration of the night sky in the Northern Hemisphere, the meridian passage of Sirius, and the phases and orbit of the Moon. Unlike many complications that track terrestrial time, the Celestial is focused on sidereal time. It uses a sophisticated planetary gear system within the Calibre 240 LU CL C to choreograph the “celestial ballet” on the dial. Despite its 44mm diameter, the watch remains surprisingly slim at 10.58mm, maintaining Patek Philippe’s signature elegant profile. The 6102R is easily identified by its two crowns: one at 2 o’clock for winding and setting solar time, and another at 4 o’clock to adjust the astronomical indications and sky chart. Key Features Model Name Grand Complications “Celestial” Condition New Reference Number 6102R-001 Case Material 18k Rose Gold Dimensions 44 mm (Diameter) | 10.58 mm (Thickness) Dial Black Sapphire-Crystal Sky Chart and Moon Phases Movement Calibre 240 LU CL C (Self-winding) Power Reserve Min. 38 Hours – Max. 48 Hours Functions Sky Chart, Moon Phases, Orbit of Moon, Sidereal Time, Date Strap Shiny black alligator leather Clasp Fold-over clasp in 18k Rose Gold Water Resistance 30 m (100 ft) The Astronomical Dial. Three-Layer Depth: The dial is composed of three sapphire discs. The bottom disc shows the moon phases, the middle disc tracks the sky chart and Milky Way, and the top disc features the elliptical frame that defines the sky visible from a specific latitude (Geneva). Mean Solar Time vs. Sidereal Time: While the leaf-shaped hands show standard time, the background rotations track the stars, which appear to move slightly faster than the 24-hour day (a sidereal day is approximately 23 hours, 56 minutes, and 4.1 seconds). Artisanal Case & Crowns. Calatrava Cross Detailing: Both rose gold crowns are embossed with the Patek Philippe Calatrava Cross. The crown at 4 o’clock is particularly complex, as it must move the astronomical discs with extreme precision to ensure the moon’s age is accurate to within 6.51 seconds per lunation. Date by Hand: A central red-tipped hand points to a date scale on the outermost periphery of the dial, a functional addition that distinguishes the 6102 from the earlier 5102 reference.