Answer first
Vacheron Constantin publishes no Métiers d'Art collection named Les Cosmos. The brand's celestial work sits under other names, including Copernicus Celestial Spheres in 2017 and Les Univers Infinis in 2012. No reference number in the brand catalog matches the phrase Les Cosmos. Listings that use this name describe a watch the maker does not sell.
Pages that rank for this keyword lead to replica sellers. Asking prices in those listings run from about $250 to $900. Genuine Vacheron Constantin Métiers d'Art pieces sell for six figures and are produced in runs of 5 to 20 units per design.
What the Métiers d'Art line contains
- Hand engraving, guilloché turning, and Grand Feu enamel, each step done by one artisan.
- Cases in white gold, pink gold, or platinum, sized 39 mm to 42 mm.
- In-house calibers, including the 2460 and the 1120.
- A production number on the caseback, often between 5 and 20.
What replica listings show
- Photos taken from auction houses and press kits.
- Copy that repeats 1:1 and Swiss movement with no caliber number.
- Caseback images that crop out the engraving or show a flat etch.
- Dial decoration in printed resin, not fired glass enamel.
- No serial number, or a serial number that repeats across units.
Legal status in the US
Counterfeit watches infringe trademarks and fall under the Lanham Act and 18 U.S.C. 2320. US Customs and Border Protection seizes shipments at ports of entry. A first trafficking offense carries up to 10 years in prison. Buyers face seizure of the goods and civil claims from the trademark owner.
What is unknown
No public record shows a Vacheron Constantin reference called Les Cosmos. Some sellers attach numbers in the 7600 or 86000 range. Those numbers can be checked against the brand catalog at no cost. No authorized dealer stocks this name.