Short answer: there is no Cartier reference number 4106. Cartier has never issued a Cle de Cartier under that code, and the brand's reference system does not use bare four-digit numbers. The phrase "fake cle de cartier 4106" shows up in marketplace and social media listings where sellers attach an invented code to a replica watch. A watch described that way is not a legitimate Cartier product, no matter how the listing is worded.
What the Cle de Cartier Actually Is
The Cle de Cartier is a Cartier collection introduced in 2015. The name comes from the French word for key, and the crown is shaped like a key head set with a sapphire or spinel cabochon. The line has been sold in steel, pink gold, yellow gold and white gold, in sizes around 35 mm, 40 mm and 41 mm, with automatic and quartz movements depending on the version.
Why 4106 Is Not a Cartier Reference
Cartier reference codes combine a letter prefix with letters and digits, for example WSCL0005 or WGCL0004. The code appears on the caseback, on the warranty card and in Cartier service records. A plain number such as 4106 matches no catalog entry. When a seller uses a bare number, it usually refers to a replica production batch or an internal stock code, not a model.
How to Check a Cle de Cartier for Authenticity
Before you start
- A 10x jeweler's loupe or a phone macro lens
- Clear photos of the caseback, crown, dial and clasp from the seller
- The exact reference code the seller is quoting
- Access to a Cartier boutique or an independent watchmaker
Steps
- Write down the complete reference code from the caseback and compare it against the Cle de Cartier entries in Cartier's own catalog.
- Examine the caseback engraving under magnification. Genuine engraving is crisp with even depth, while laser-etched replicas look shallow and wavy.
- Inspect the crown. The Cle crown is shaped like a key head and set with a sapphire or spinel cabochon; on fakes the stone is often glued-in glass or plastic with a visible seam.
- Study the dial printing. Roman numerals on a genuine Cle have sharp serifs, and on several references the "Cartier" signature is worked into one of the numerals.
- Check the hands and date window. Genuine hands are polished or blued steel with clean edges; replica hands show rough filing and a misaligned date aperture.
- Turn the watch over and read the clasp or buckle stamping. Cartier stamps the logo, the reference and the country of origin in shallow, even lettering.
- Ask the seller for a movement photo and match the caliber to the reference. A quartz movement inside a watch Cartier sells as automatic confirms a fake.
- Take the watch to a Cartier boutique or an independent watchmaker for a service estimate. A refusal to open or service the watch settles the question.
- Compare the price with the current market for that reference. A price far below retail for a gold Cartier watch is a fake signal.
Red Flags in Listings
- No letter-prefixed reference code, only a number such as 4106
- Stock photos instead of photos of the actual watch
- Terms such as "1:1", "AAA" or "mirror quality"
- A seller who avoids boutiques, service centers or in-person inspection
- Pressure to pay outside the platform's buyer protection
Legal and Resale Reality
Selling counterfeit watches infringes Cartier's trademark, and importing them into the United States is prohibited. Customs authorities seize counterfeit shipments at ports of entry, and buyers can lose both the watch and the money. Cartier will not service a counterfeit, so there is no repair path, no parts supply and no resale market. A replica has no collector value.
If You Already Bought One
- Stop any further payment and keep the listing, chat log and receipt.
- File a dispute with the marketplace and, if you paid by card, request a chargeback for counterfeit goods.
- Report the seller to the brand's anti-counterfeiting contact or to customs if the watch was imported.