The 10 hidden secrets of theAlliance Moon Phase Exploring the invisible details

Conceived as a timepiece to be worn every day and forever, the collection Alliance It embodies the most accomplished ambition of Charlie Paris. With its assertive proportions, precise lines, and textured surfaces, it represents a balance between strength and finesse, heritage and innovation. But behind this refined appearance lie 10 secrets. Ten technical details, meticulous finishes, and horological choices that testify to the expertise cultivated by the Maison.

1. The art of openwork mass by Roland Bailly

At the heart of the movement beats an oscillating weight whose openwork shape is anything but accidental. Crafted from solid tungsten, this essential component is sculpted with extreme precision thanks to the expertise of our partner in Besançon. Roland Bailly. Specializing in precision machining since 1964, this family business uses a die-sinking electrical discharge machining (EDM) technique to cut through the density of tungsten. The result: a lightweight, aesthetically pleasing, and high-performance component, obtained after approximately forty minutes of machining per part.

2. Hand-assembled movements, balancing rigor and heritage

It is in Besançon, the historical cradle of French watchmaking, that the movements of the collection Alliance come to life, piece by piece. Within the workshop Humbert-Droz Réparalux, each caliber is assembled by hand, with patience, rigor and passion, by highly qualified watchmakers.
With four generations of watchmaking expertise, this family business puts its know-how at the service of the greatest manufacturers. It has thus earned the trust of the Swiss manufacturer La Joux-Perret, proof of a rare level of exacting standards. 

Once these movements are ready, they are sent to our workshop located in Paris, just above our shop in the 6th arrondissement, where each Charlie Paris watch is hand-assembled. This close relationship between design and manufacturing allows us to guarantee rigorous quality control and to offer watches designed and assembled locally with the utmost care.

3. One Moon Phase perpetual of rare precision

The watch Alliance Moon Phase It doesn't simply display the moon: it reproduces its actual cycle with awe-inspiring precision. Thanks to its sophisticated mechanism, it only requires adjustment every 122 years and 51 days.

4. Why the name " Alliance "?

The collection's name is no accident. It evokes first and foremost the union of French and Swiss craftsmanship, but also a symbolic commitment, making it an ideal watch to give as an engagement or wedding gift. A timepiece to symbolize a strong and lasting bond.

5. The Geneva Hills

For discerning enthusiasts, their presence never goes unnoticed. Geneva Coast, with their fine parallel undulations, adorn the bridges of the C105 movement like the pages of a hand-engraved book.
Rooted in centuries-old tradition, these delicate stripes are far more than mere ornamentation: they embody the elegance of watchmaking and the meticulous attention to detail. Applied using a rigorous artisanal method, they capture the light, reveal the depth of the movement, and signify a level of excellence reserved for the most refined timepieces.

6. Double-domed sapphire crystal

The domed crystal protecting the watch is not a simple dome: it's a double-domed sapphire crystal. Custom-cut and treated with an anti-reflective coating, it offers optimal legibility and striking visual depth. A technical feat that enhances the dial from every angle.

7.A Moon Phase double hemisphere

The moon you see at 9 o'clock on the dial is not only visible from Paris. The mechanism of theAlliance Moon Phase offers a double hemisphere reading, with a moon visible from both the North (208°) and the South (28°), a rarity in the watchmaking world.

8. A glimmer in the darkness

Thanks to Super-LumiNova® BL grade A, the indices at 12, 3, 6, and 9 o'clock, as well as the hands, glow softly in the dark. Even better: the moon and stars on the subdial... Moon Phase They too are luminescent, a miniature constellation on your wrist.

9. Two years of development

The collection is the result of two years of research. Alliance is Charlie Paris's most ambitious project. This work marked a turning point for the house, inspiring the redesign of several collections, such as the collection Initial And GR, reworked to mark the brand's tenth anniversary.

10. The C105 Soprod movement

At the heart of the watch Alliance Moon Phase beats the caliber C105 from Soprod, A top-of-the-line Franco-Swiss movement. It's not a manufacture movement, but a customized version that only Charlie Paris offers in this configuration. Moon Phase perpetual.