What a fake Clé de Cartier is

The Clé de Cartier is a Cartier watch line that launched in 2015. The name comes from the crown. Cartier shaped the crown like the head of a key. "Clé" is French for key.

A fake Clé de Cartier copies that case, that crown, and the dial layout. Two groups exist. Replica watches are sold as copies. Counterfeits are sold as genuine Cartier watches at genuine prices. The checks below cover both groups.

Clé de Cartier specs

  • Launch year: 2015
  • Case sizes: 31 mm, 35 mm, 40 mm
  • Metals: steel, rose gold, yellow gold, white gold
  • Movement: Cartier 1847 MC, automatic, made in-house
  • Power reserve: about 42 hours
  • Beat rate: 28,800 vibrations per hour
  • Crystal: sapphire
  • Crown: key shape with a blue cabochon
  • Water resistance: 30 m on most references

Case back and numbers

Cartier marks the case back with the reference number, the serial number, the metal, and "Swiss Made." The marks are stamped or laser etched into the metal. On a fake, the same text sits on top of the surface or shows raised edges where a mold copied the letters.

Cartier runs no public serial lookup. A boutique or an authorized service center can confirm a serial against its records. That step takes days, not minutes.

Crown and cabochon

The crown is the first tell. A genuine Clé crown sits flush against the case and turns with light resistance. The cabochon is a smooth dome with no flat top and no visible glue. Fakes use glass, dyed resin, or a faceted stone. Many fakes show a gap between the crown and the case.

Dial and hands

Cartier prints its name in a specific serif. The letters carry even stroke width and sharp terminals. Fake dials show thick strokes and uneven spacing between letters. Genuine Clé Roman numerals have polished edges. The hands are sword shaped with beveled edges and pointed tips. Fakes show blunt tips and rough polish.

Movement

Cartier fits the 1847 MC caliber in most Clé references. The rotor carries the Cartier name. A watchmaker can open the back in under a minute and read the caliber number. Many fakes use a Seagull or Miyota automatic. Those movements run, but they are not 1847 MC calibers, and their finish is coarse.

Bracelet and finish

Genuine Clé bracelets use solid links. Edges are chamfered. The clasp closes with a firm click and carries the Cartier name and the reference. Fake bracelets use hollow links that rattle when shaken, and the clasp stamp is shallow.

Price and paperwork

Steel Clé references sold new between about $5,500 and $8,000. Gold references ran above $15,000. A Clé offered at $900 is not a Clé. Ask for the box, the invoice, and the warranty paper. Cartier paperwork lists the reference number and the purchase date. Paper that does not match the case is a warning sign.

What no check can prove

Photos are weak evidence. Parts swap. A genuine case back can sit on a fake movement. A watch that passes every test on this page still needs a watchmaker to open it and time it on a machine.