Patek Philippe Celestial Ref. 6105G-001 Overview
New Release

Patek Philippe Celestial Ref. 6105G-001 Overview

By quattro · Apr 19, 2026 · 22 replies
quattro
WPS member · Patek Philippe forum
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quattro's detailed post introduces the Patek Philippe Celestial Ref. 6105G-001, an evolution of the brand's astronomical wristwatches. The author meticulously traces the lineage of this new reference, comparing it to its predecessors and highlighting its unique sunrise and sunset complication. By contextualizing the 6105G-001 within Patek Philippe's history of grand astronomical pocket watches, quattro underscores the significance of this release for collectors and enthusiasts.

Patek Philippe just released a new Celestial watch: the ref. 6105G-001.

It is an upgraded and completely redesigned version of its two predecessors

  • ref. 5102, introduced in 2002
  • and ref. 6102, introduced in 2012.

Let's have a look!


A/ THE NEW CELESTIAL SUNRISE AND SUNSET REF. 6105G-011

Like the 2002 Celestial ref. 5102, the new ref. 6105 features, in addition to the indication of the time:

  • A Northern Hemisphere sky chart as seen from Geneva 
  • Moon indications: angular motion of the moon + moon phases


credit: Time and Watches


And, like the 2012 Celestial ref. 6102, it features a radial date indicator.





But, unlike its predecessors, the 6105G-001 comprises a complication only previously featured on a few astronomical pocket watches: the indication of sunrise and sunset hours.

Here are the four major pocket watches with such a complication:

a) James Ward Packard's Astronomical Pocket Watch (1925-1927)






Personal photos from the Patek Philippe Museum


b) Henry Graves Jr.'s Supercomplication (1933)






credit: Hodinkee


c) The Caliber 89 - Made for the 150th Anniversary (1980-1989)

NB: in French, SUNRISE=LEVER DU SOLEIL (8 o'clock sub counter) and SUNSET=COUCHER DU SOLEIL (4 o'clock sub counter) 






credit: Hodinkee (1) & Personal photos from the Patek Philippe Museum


d) The Star Caliber 2000 ref. 990/7 (2000)




Personal photos from the Patek Philippe Museum


Having reviewed these illustrious ancestors, I think it is clear that the new Celestial is a major release.

And I draw your attention to the fact that in order to preserve the visual harmony of the sunrise and sunset scales, the numeral 1 isn't positioned at midnight as is customary. 

Indeed, the date numerals also serve as hour markers for the sunrise scale (from 5 to 11) and sunset scale (from 17 to 23) and the offset position of the “1” allows for a perfect symmetry.

How incredibly clever!



Moreover, not only does the movement display sunrise and sunset time, but it is also capable of coping with Daylight Saving Time (DST)...

Very ingenious mechanisms described in the video at the end of this post allow to switch from winter time to summer time, and vice versa (via correctors on the left case flank).







Aesthetically, the 6105G-001 has a very modern look.

The case size is a large and sporty 47 x 12.39 mm and the water-resistance is 30 m.



The pattern on the case flanks and on the solid caseback is inspired by the design of space modules.


credit: Time and Watches


The crown at 4 o'clock enables winding and time setting.

The crown at 2 o'clock allows for the adjustment of the astronomical functions.





The integrated black composite strap with X-shaped pattern comes with a patented fold-over clasp in white gold.



The 240 C LU CL LCSO caliber measures just 7.93 mm thick despite the addition of the 121 components for the sunrise and sunset indications and the patented system that allows to correct the time as well as sunrise and sunset indications during daylight saving time changes.

Under the dial view



Rear view showing clearly how the 240 caliber serves as a base upon which the astronomical module is added.



Finally, here’s what the watch looks like on the wrist: thanks to its lugless design, it seems easier to wear than the official dimensions would suggest.







credit: Swisswatches Magazine & bannatynejoyeros


Now, let's just have a look at the previous versions of the Celestial.


B/ THE PREVIOUS CELESTIAL REFERENCES

1/ REF. 6102

Launched in 2012 - It features a radial date - Case: 44.2 x 10.2 x 51.8 mm - Caliber 240 LU CL C

a/ Ref. 6102P-001










credit: Monochrome


b/ Ref. 6102R-001




credit: The Keystone 


2/ REF. 5106R - ONLY WATCH 2009

This piece unique was sold at Only Watch 2009 by Patrizzi & Company and it was acquired by Jean-Claude Biver: full story here, on Hodinkee.

Like the later ref. 6102, it features a radial date indicator.


credit: Hodinkee


3/ REF. 5102

Introduced in 2002 - Case: 43.1 x 9.9 x 52 mm - Caliber 240 LU CL

a/ Ref. 5102G-001



Case flank engraved with half Calatrava cross motif








credit: 41 Watch & 1916 Company (two last photos)


b/ Ref. 5102PR-001




c/ Ref. 5102J-001






credit: Phillips


So, what are your thoughts concerning the Celestial in general and the new Celestial ref. 6105G in particular?

Thanks for reading.

Best, Emmanuel


BONUS: PRESENTATION VIDEO

Official Patek Philippe in-depth presentation



About the Patek Philippe Celestial Ref. 5102

Patek Philippe Celestial Reference 5102

The reference 5102 represents Patek Philippe's Celestial within the Sky Moon Celestial series, distinguished by its Northern Hemisphere sky chart complication. This astronomical timepiece displays celestial configurations alongside traditional timekeeping functions. The model was produced from 2002 to 2019, establishing its place within Patek Philippe's complicated watch offerings.

The 43mm case is crafted in 18k white gold with a smooth bezel and sapphire crystal. The blue celestial dial houses the automatic caliber 240 LU CL movement, providing 48 hours of power reserve. Water resistance extends to 30 meters, and the watch is fitted with an alligator leather strap.

This reference appeals to collectors seeking astronomical complications and celestial display functions. The 5102 occupies a specialized position within Patek Philippe's catalog, combining the brand's movement expertise with astronomical indications. The production span of seventeen years indicates sustained collector interest in this particular celestial configuration.

Specifications

Caliber
240 LU CL
Case
18k White Gold
Diameter
43 mm
Dial
Blue Celestial
Water Resist.
30m
Crystal
Sapphire

Key Points from the Discussion

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The Discussion
MD
mdg
Apr 19, 2026

...seems to have more depth to the dial and appears thinner. Although I'm surprised the current one is as thin as it is. Silly question: What if a customer wants to see the sky view from somewhere other than Geneva? I'm thinking of watches like the Jules Audemars Equation of Time where watches are customized to location...

PA
patrick_y
Apr 19, 2026

At first, I didn't like the new Celestial. I didn't dislike it, but I was somewhat neutral and not positive about the Celestial. It didn't really follow any Patek Philippe design DNA. But, the more I see it, I want to say that we should applaud Patek Philippe for trying this new design language. After erasing the context and thinking from an alien's perspective (one who has no familiarity with Patek Philippe design DNA and other context), I have to applaud that the design is overall modern and m

BL
blau
Apr 19, 2026

I just love that Patek is moving the celestial complication forward with yet greater complexity!

GL
GLau
Apr 19, 2026

quite an innovative product indeed. Have you tried it yet ?

QU
quattro
Apr 20, 2026

the 5106! But the new 6105 is a major release from a horological standpoint imo. Afaik, the sky chart isn’t customizable but I might be wrong. Best, Emmanuel

QU
quattro
Apr 20, 2026

But the 6105 is a major release imo from a watchmaking perspective. Best, Emmanuel

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