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Patek Philippe
A WHITE GOLD AUTOMATIC ASTRONOMICAL WRISTWATCH WITH SKY CHART PHASES AND POSITION OF THE MOON AND TIME OF MERIDIAN PASSAGE OF SIRIUS AND THE MOON REF 5102G MVT 3328193 CASE 4259744 CELESTIAL MADE IN 2004
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338
Patek Philippe
A WHITE GOLD AUTOMATIC ASTRONOMICAL WRISTWATCH WITH SKY CHART PHASES AND POSITION OF THE MOON AND TIME OF MERIDIAN PASSAGE OF SIRIUS AND THE MOON REF 5102G MVT 3328193 CASE 4259744 CELESTIAL MADE IN 2004
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Details & Cataloguing

Important Watches

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Geneva

Patek Philippe
A WHITE GOLD AUTOMATIC ASTRONOMICAL WRISTWATCH WITH SKY CHART PHASES AND POSITION OF THE MOON AND TIME OF MERIDIAN PASSAGE OF SIRIUS AND THE MOON REF 5102G MVT 3328193 CASE 4259744 CELESTIAL MADE IN 2004
• cal. 240/165 automatic lever movement, stamped with the seal of Geneva, 45 jewels • outermost sapphire crystal with silvered ellipse framing the celestial chart with cardinal points, blue chapter ring with silvered radial Roman numerals, dot minute divisions, corundum sapphire disc with painted gold stars in relative orders of magnitude, reverse marked with fine gold dust to represent the Milky Way Galaxy, below revolving blue disc with aperture for moon-phases • 18k white gold case, band finely decorated with Patek Philippe Calatrava crosses, winding crown at 2 to set the time, crown at 4 to set the celestial chart and moon-phases, snap-on sapphire crystal display back • case, sapphire crystal disc and movement signed • with an 18k white gold Patek Philippe buckle
diameter 43 mm
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Accompanied by a Patek Philippe Certificate of Origin, presentation case, leather folder instruction manual and Extract from the Archives confirming date of sale on April 22nd, 2004. 

Catalogue Note

Launched in 2002, the Celestial (Ref. 5102) is one of the most important horological complications ever developed. Its introduction allowed the remarkable rendition of the Northern Hemisphere's celestial chart to be fitted dynamically upon the wrist for the first time. 

The celestial chart rotates counter clockwise, showing the progression of stars relative to the meridian passage of Sirius. Simultaneously, the meridian passage and phases of the moon can be seen. 25 trillion (25,000,000,000,000) ratio combinations were researched by Patek Philippe to determine the greatest accuracy for all the Ref. 5102's displays. This gives some sense of the tremendous challenges that the production of this highly complicated model posed to the company's watchmakers.

Using a highly sophisticated automatic calibre 240 LU CL, the movement uses 301 individual parts that are meticulously hand finished in the workshops of Patek Philippe. Three corundum sapphire crystal discs are used to simulate the orbit of the moon and the passage of the stars, creating an incredible sense of depth. For this important invention, Patek Philippe was awarded a Swiss Patent for the base calibre (CH 688 171 B5).

Important Watches

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Geneva