Is your Cartier
the real deal?
Cartier's elegant designs are frequently counterfeited. Learn the telltale details that separate genuine Cartier watches from fakes.
How to authenticate a Cartier
Blue Sapphire Cabochon Crown
Genuine Cartier watches feature a polished blue sapphire on the crown, smooth and dome-shaped. Fakes use plastic or wrong-colored stones.
"Cartier" Script on Dial
The signature should be clean, consistent, and positioned precisely. Look for uniform letter weight and spacing.
Secret "CARTIER" in Roman Numerals
On many models, the VII marker subtly incorporates the letters C-A-R-T-I-E-R within the Roman numeral design.
Serial & Reference Numbers
Engraved on the case back with precise, clean etching. Each Cartier watch has a unique serial that can be verified.
Case Finishing
Cartier cases are polished to a mirror shine or satin-brushed with perfect uniformity. Look for consistent, flawless surfaces.
Common signs of a counterfeit
Wrong Shade of Blue
The cabochon crown on fakes is often too dark, too light, or made of plastic instead of genuine sapphire.
Sloppy Case Back Engraving
Genuine Cartier engravings are deep and sharp. Fakes have shallow, uneven, or poorly finished markings.
Misaligned Roman Numerals
Cartier dials are precisely printed with perfect symmetry. Fakes often have uneven or crooked markers.
Cheap Bracelet Links
Cartier bracelets have flush, tight links with no wiggle. Fakes rattle and have visible gaps between links.
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Start ScanningFor high-value purchases, we recommend pairing your AI scan with an in-person inspection by a certified watchmaker for complete peace of mind.
Frequently asked questions
Does every Cartier watch have a blue cabochon crown?
Most Cartier models feature the signature blue sapphire cabochon on the crown. Some sport models and limited editions may use a different colored stone or a plain crown.
How can I find my Cartier reference number?
The reference number is engraved on the case back of your Cartier watch. It typically consists of letters and numbers that identify the model, size, and material.
Is the hidden "CARTIER" in the VII real?
Yes, many Cartier models with Roman numeral markers incorporate the word CARTIER within the VII hour marker. It's subtle but present on genuine watches.