Patek Philippe Celestial Reference 5102PR

Technical characteristics

Type

Astronomic wristwatch

Diameter

43 mm

Movement

Caliber 240/165

Reference

5102PR

Sold Date

August 14, 2010

Case Serial

4492399

Case Material

Platinum and 18K pink gold

Complications

Mean time indication, nocturnal sky chart, moon phases, moon orbit, meridian passage of Sirius

Place recorded

Switzerland

Movement Serial

5512738

Maker / attribution

Patek Philippe

Design

Visible features

• Case band embossed with Calatrava pattern • Blue sky chart composed of three superimposed sapphire disks • Two crowns positioned at 2 and 4 o'clock • Skeletonized feuille hands

Case and Dial Construction

The watch features a complex three-body case design combining platinum and 18K pink gold. It measures 43 mm in diameter and 10 mm in thickness. The exterior aesthetics include a stepped curved bezel and a case band embossed with the manufacturer's signature Calatrava pattern. The case is equipped with concave lugs secured by screw-bars and sapphire crystals on the display back and front. The blue dial serves as an astronomic display, featuring a nocturnal sky chart of the Northern Hemisphere. This intricate construction utilizes three superimposed sapphire crystal disks to represent the sky, moon phases, and moon orbit. The dial includes gold star constellations, cardinal direction markers, and Roman hour graduations around the periphery, with white skeletonized feuille hands indicating the time.

Movement and Functionality

Inside the case resides the self-winding Caliber 240/165 movement. It features rhodium-plating, fausses cotes decoration, and a 22K yellow gold micro-rotor. The escapement is a straight-line lever type utilizing a Gyromax balance adjusted for heat, cold, isochronism, and five positions. The movement incorporates a shock absorber and a self-compensating free-sprung flat balance spring, housing 45 jewels in total. Functionally, the watch is operated via two crowns. The crown at the 2 o'clock position is utilized for winding and setting the time. The crown at the 4 o'clock position provides adjustments for the sky chart, the lunar orbit, and the moon phases.

Condition and Included Accessories

The dial is described as being in as-new condition, while the case is noted as very good with slight scratching. The object is sold as part of a set that includes the original fitted winding box and an additional box. Also included in the sale are the Certificate of Origin and a leather folder containing technical and instruction documentation. The timepiece is completed by an additional strap and 18K pink gold Patek Philippe buckle, with a matching deployant clasp attached to the watch.

Identification

Reference

5102PR

Serial number

4492399

Source note

Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.