New: Louis Moinet Cosmopolis

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Louis Moinet creates a new tourbillon watch with 12 meteorite inserts! The Cosmopilis was launched at 6:30pm on Thursday, 21 September 2023 at the Musée d’Histoire des Sciences in Geneva.

Press Release information with commentary in italics.

New: Louis Moinet Cosmopolis

The Louis Moinet Cosmopolis is a piece unique, and no retail pricing information was given in the release.


We were invited to the launch event in Geneva, but did not attend, though we would have loved to be in Switzerland for the evening, we could not justify flying there just for this, and had to regretfully decline. But we got the early release information, have had time to mull over the significance of this novelty. Here are our thoughts.

The watch is based on Louis Moinet flying tourbillon which has been used by the maison in many of their watches. The recent Savanna Tourbillon jigsaw puzzle watch was also based on the same movement.

What makes this novelty special is the use of 12 different meteorites from brand owner Jean-Marie Schaller’s extensive collection of meteorites. Jean-Marie is a character, and an extremely interesting person to have a chat with. He has a deep passion for space, and collects objects like meteorites. This is not the first meteorite or space related watch that he has made under the Louis Moinet name. From the very limited double tourbillon of Acasta & Dhofar to the Space Revolution and Super Moon, Jean-Marie’s fascination is clear and fully expressed in his creations.

The watch looks rather unusual, but not in a bad way. The aesthetics is rather pleasing with fragments of meteorite being placed slightly elevated and such that the space between them form the hour markers 8 o’clock to 4 o’clock around the outer edge of the dial. The tourbillon itself protrudes from the dial cutout to match the level of the meteorite discs and occupies the 6 o’clock position, and the space between it and the immediate meteorites indicate 7 and 5 o’clock with 6 being shown by the center of the aperture. A nice touch!

The fragments themselves draw interest to those fascination with meteorites, and range from the largest piece which is fitted like a medallion on the center of the dial, and is made from a precious lunar meteorite. The 10 other fragments originate from Mars, Asteroids and Meteorite showers. The final piece is used at the back of the tourbillon cage. The fragments all have their own look and hue, and together, form a kind of a system of their own. Quite fascinating.

Release information

When watchmaking incarnates the universe in a unique timepiece and is honored with a GUINNESS WORLD RECORDS™.

“I’ve been collecting exceptional meteorites for twenty years. Each has its own story.  My collection contains rare pieces, like the lunar meteorite Dhofar 461, which is known for its white-speckled interior. And I have a valuable meteorite from Mars that is one of 300 samples identified to this day. I also have the famous Allende, the oldest rock in the solar system, and Erg Chech, the oldest magmatic rock known, which comes from a protoplanet that vanished at some point. As for the Jbilet Winselwan, what makes it remarkable are the traces of amino acid, which might well be the first signs of life in the cosmos. The Sahara 97093, on the other hand, distinguishes itself through its micro-diamonds, which took shape at the heart of stars explode and become supernovas. These fascinating stories were the creative spark that gave birth to the COSMOPOLIS. Even more than a great watchmaking work, COSMOPOLIS is a historic and scientific journey, a microcosm of the macrocosm.”

Jean-Marie Schaller, owner and creative director

The genesis of a magnus opus 

The story actually begins well before our times in the mysterious confines of outer space. Meteorites, some older than Earth itself, traveled billions of miles through space and ultimately found a home on our planet. Imagine these rocks coming from another world… They are of such unique composition that the price per gram surpasses that of gold and platinum combined. Just think of these materials that bore witness to the shaping of our solar system, that contain the first known traces of life in the cosmos. They can tell us stories of the stars that we are just beginning to comprehend.

Today, after their interstellar journey, Les Ateliers Louis Monet has assembled these heavenly treasures into a unique timepiece: the COSMOPOLIS.


The COSMOPOLIS is in the spotlight on Thursday, 21 September, in Geneva, Switzerland. It is receiving a prestigious GUINNESS WORLD RECORDS™ title for the “most meteorite inserts in a watch” This means that Les Ateliers Louis Moinet will from now on be known beyond the borders of traditional watchmaking, where it will generate amazement for its sheer rarity globally. 

This world record will also confirm the boundless creativity of Jean-Marie Schaller and his ability to generate emotions and make us dream. This title also reflects his deep gratitude towards his solid network of friends, passionate supporters, and craftsmen who contribute daily to the development of Louis Moinet watches.

COSMOPOLIS, an evocative name

The name COSMOPOLIS pays tribute to the connection between our world and the infinite universe. The prefix cosmo- suggests the sheer size of the cosmos, the stars, their mysteries. The suffix -polis suggests the cultural and artistic spirit of the city. Together, the name COSMOPOLIS embodies the very essence of this watch by merging the fascination for space with the timeless elegance of the watchmaking craft. 

Twelve meteorites: An exceptional constellation

An aura of mystery emanates from the COSMOPOLIS. The time appears subtly between the meteorites, drawing the eye at each glimpse and inviting one to explore a cosmic microcosm. The dial itself is the stage for a veritable celestial theatre. Each fragment of meteorite has been placed so as to create a unique and fascinating constellation. In the centre is the rarest and most captivating stone of all, a lunar meteorite. One of these outstanding fragments, a black chondrite, is located in the back of the tourbillon cage, the beating heart of the mechanism. It’s a reminder of the powerful cosmic forces that have forged our universe. 

Ten other special fragments have been carefully disposed, each on its own base that is discreetly attached to dark-grey, brushed dial. Each of celestial gems, is a witness to the origins of our solar system, each tells a billion-year-old story, one that includes the extraordinary voyage that them right to the COSMOPOLIS.

These slivers of history, these glimpses of eternity, these slices of the cosmos, this constellation of meteorites fuse space-time and the world of watchmaking to create the rarest work of art.

Haute horlogerie and the flying tourbillon 

To defy gravity in a particularly spectacular way, the COSMOPOLIS comes with an off-centre tourbillon in the subdial at 6 o’clock. The movement is hand-wound, with two barrel springs, providing an impressive ninety-six hours of power reserve. The system, known as “volte-face,” places one barrels upside-down over the other. This allows them to deliver their energy simultaneously for a ninety-six hour power reserve. 

A noble case of rose gold

It comes in an 18-ct, 5N rose-gold case with a diameter of forty millimetres. The lines are fluid and taut at the same time. The highly technical sapphire crystal dome reveals the many fascinating facets of the meteorite fragments below. As for the openworked lugs, they emphasise the smooth integration of the bracelet.

Louis Moinet Cosmopolis Specifications

Unique pieceCOSMOPOLIS
Material18-carat 5N rose gold, polished and satinated 
Diameter 40.7 mm
12 meteorites1. DHOFAR 461 – Moon (Oman)2. DHOFAR 1674 – Mars (Oman)3. ALLENDE – Meteorite shower (Mexico)4. ERG CHECH – Asteroid (Algeria) 5. JBILET WINSELMAN– Asteroid (Morocco)6. ISHEYEVO – Asteroid (Russia)7. ALETAI ARMANTY – Asteroid (China)8. AGUAS ZARCAS– Meteorite shower (Costa Rica)9. GIBEON – Asteroid (Namibia)10. TOLUCA  – Asteroid (Mexico)11. SAHARA 97093 – Asteroid (Sahara Desert)12. BLACK CHONDRITE L5 – Asteroid (Sahara Desert)
HandsHours, minutes, facetted and skeletonised, with luminescent matter
FunctionsHours | Minutes | Flying tourbillon
ComplicationFlying tourbillon 
TypeHand-wound with double barrel
Oscillations 28,800 vibrations per hour
Power reserve96 hours
Water resistance 30 metres

The COSMOPOLIS meteorites description

1. Lunar meteorite, Dhofar 461

Origin: Moon

Found near Dhofar, Oman 

Dhofar 461 is an extremely rare specimen of lunar meteorite, characterised by a white-speckled interior. There are currently only 300 recorded lunar meteorites, all of which have been ejected from the Moon during the past 20 million years. Most of these were ejected over the past 100,000 years. On their way to Earth, some of them orbited the sun first before entering Earth’s orbit and atmosphere, where they turn into shooting stars. Their lunar origin has been confirmed by rigorous mineralogical comparisons, their chemical isotopic composition, and with samples collected during the Apollo missions to the Moon.

2. Martian meteorite, Dhofar 1674

Origin: Mars 

Found near Dhofar, Oman 

Dhofar 1674 is one of the rarest Martian meteorites. It has an extremely special greenish texture. Like most meteorites, Dhofar 1674 was found in the desert, where its blackened exterior contrasts sharply with the surrounding sand. . To date, fewer than 300 Martian meteorites have been identified worldwide. This meteorite costs more per gram than gold and platinum combined.

3. Allende meteorite 

Origin: Meteorite shower

Found in Mexico 

The Allende is the most studied meteorite in history. In fact, it has been dubbed the “Rosetta Stone” for the wealth of information it has provided on the formation of the solar system. It is estimated to be 4.567 billion years old and thereby the oldest rock in the solar system.

4. Erg Chech meteorite 

Origin: Asteroid 

Found in Algeria 

Erg Chech comes from a volcanic rock and is the oldest magmatic rock known to date. It originated from a protoplanet that has since disappeared, and it is older than the Earth itself. After a journey of more than 4 billion years, it landed about a hundred years ago by the luck of orbital attraction in southern Algeria, in the Erg Chech sea of sand, whence its name. Amond the 65,000 recorded meteorites in the world, none share its unique composition. It has an especially stunning appearance that combines green and brown hues and a surface look brought about by a lava flow.

5. Jbilet Winselman meteorite 

Origin: Asteroid

Found in Morocco, in the western Sahara Desert 

This mysterious Jbilet Winselwan meteorite contains traces of amino acids, that are probably the first known traces of life in the cosmos.

6. Isheyevo meteorite 

Origin: Asteroid

Found in Russia 

The Isheyevo meteorite is a carbonaceous chondrite containing a beautiful sequence of fine layers. 

7. Aletai Armanty meteorite 

Origin: Asteroid

Found in China 

This meteorite used to be known as Armanty, but is now known under the name Aletai. It is composed of a natural and extraterrestrial mix of iron and nickel. It comes from the heart of an asteroid weighing over one-hundred tons. 

8. Aguas Zarcas meteorite 

Origin: Meteorite shower

Found in Costa Rica 

The Arguas Zarcas meteorite is part of a meteorite shower that fell in a rainforest in central Costa Rica on April 23, 2019.

9. Gibeon meteorite 

Origin: Asteroid

Found in Namibia 

The Gibeon meteorite landed in Namibia in prehistoric times. It was named after the nearest city. It is famous for the distinctive Widmanstätten pattern, which is typical for extraterrestrial ferrous rocks. 

10. Toluca meteorite 

Origin: Asteroid

Found in Mexico 

This meteorite probably struck Earth over ten millennia ago. For centuries, Mexicans living near meteorites have used them as a source of metal for various tools. The Toluca meteorite fragments were discovered by the conquistadores in 1776. 

11. Sahara 97093 meteorite

Origin: Asteroid 

Found in the Sahara Desert 

This extremely rare Enstatite EH3 meteorite features microdiamonds of interstellar origin. They are formed in the heart of stars that exploded and became supernovas.

12. Black L5 chondrite meteorite

Origin: Asteroid

Found in the Sahara Desert 

This black chondrite is a highly shocked meteorite, the result of a gigantic impact in space between two asteroids. Chondrites are considered the first elements that go on to become planets.