A fake Cartier Tank Allongée is a copy of Cartier's stretched rectangular dress watch, and most copies fail on three points: case proportions, dial printing, and the movement inside. Genuine Allongée cases are long, narrow, and thin, with numerals printed on one sharp plane. A copy adds thickness, softens the print, and hides a cheap quartz module behind a plated back.
What defines a Cartier Tank Allongée?
The Tank Allongée stretches the Tank case into a long, slim rectangle. Cartier built these in the 1970s, in yellow gold, with a hand-wound movement and a dial that fills the case from edge to edge. The shape reads as jewelry on the wrist, which is the point.
- Elongated rectangular case with a thin profile and tapered lugs
- Roman numerals paired with a chemin de fer minute track
- Blued steel sword hands
- Crown set with a sapphire or spinel cabochon
- Leather strap and a buckle signed on the inside
Because the design is simple, small errors stand out. That works against counterfeiters.
How do you spot a fake Cartier Tank Allongée?
Work through five checks in order. Metal and proportions first, then the dial, then the parts you need a loupe to see.
1. Case proportions and profile
A real Allongée is thin. Turn it sideways and the case should look like a sliver of metal, not a brick. Copies run thick because a cheap quartz movement plus a spacer needs room.
Look at the lugs too. On the genuine case they flow into the strap with a gentle taper. On a fake they look like separate blocks joined on.
2. Dial printing and numerals
Cartier printing is sharp. The signature at 12 and the "Swiss Made" at 6 sit on a clean plane with even strokes. On a fake the letters blur, the spacing drifts, and the minute track wanders off its rail.
Study the Roman numeral strokes with a loupe. Copies show thicker verticals and uneven serifs, and the printing sits low against the dial surface.
3. Hands, crown, and cabochon
Blued steel hands catch light along a polished bevel. Painted hands look flat and gray. The cabochon should be a smooth dome set flush into the crown, not a plastic bead resting on top.
4. Engravings, movement, and caseback
Caseback numbers on a genuine watch sit inside the metal, cut with one consistent font. Copies laser-etch digits on the surface, so the numbers look frosted and shallow.
If you can open the back, the movement settles the question. A signed Cartier movement, hand-wound with a clean finish, is a strong signal. A bare quartz module with no name is not.
5. Strap, buckle, and weight
Gold has heft. A solid gold Allongée feels dense for its size, while a plated brass copy feels light and warm. Run a thumb over the buckle: genuine hardware is solid with crisp engraving, while replica hardware is stamped and thin.
Genuine vs fake: quick comparison
- Case thickness: genuine thin; many fakes thick to fit a quartz module
- Dial print: sharp edges and even spacing; fakes fuzzy and uneven
- Hands: blued steel with a polished bevel; fakes painted or plated
- Cabochon: domed stone set flush; fakes use plastic or glass beads
- Caseback: engraved numbers in one font; fakes laser-etched and shallow
- Movement: signed and finished; fakes bare or unbranded
- Weight: solid gold density; fakes light and hollow-feeling
Why does the Allongée shape attract counterfeiters?
A rectangle is easier to machine than a round case with curved lugs, and the Tank name carries weight on the resale market. That mix pulls in copy shops.
The long case also hides shortcuts. Extra thickness reads as vintage to a buyer who has never held the real thing. Add a printed dial and a gold tone, and the watch photographs like the original.
What separates a high-grade replica from a cheap copy?
Price tracks parts. Two replicas of the same model can differ by a factor of ten, and the gap shows up in the case, the crystal, and the movement.
- Case: solid stainless steel with gold plating or a gold-filled shell beats brass with thin plating
- Crystal: sapphire resists scratches; mineral glass picks them up within weeks
- Dial: pad-printed dials with clean numerals beat smudged, low-resolution prints
- Movement: a hand-wound or high-beat quartz movement keeps steadier time than a low-grade module
- Strap: real leather with stitched edges beats bonded leather that cracks
Ask for photos of the caseback and the movement before you pay. A seller who cannot show those is selling the bottom tier.
FAQ
Is buying a fake Cartier Tank Allongée legal in the US?
Selling and importing counterfeit goods is prohibited, and US Customs and Border Protection can seize shipments at the border. Possession rules vary by state, so assume legal risk and check your local law.
Can a watchmaker tell a fake on a bench?
Yes. A watchmaker opens the caseback, checks the movement finish, weighs the case, and reads the engraving font. That takes minutes.
Do fake Tank Allongée watches keep time?
Quartz copies keep time well enough for daily wear, though the seconds hand misses the markers. Hand-wound copies range from rough to decent, depending on the movement inside.
What is the biggest giveaway?
Case thickness. The stretched Tank silhouette depends on a slim profile, and a thick case breaks the look from across a table.
Final checks before you buy
- Ask for a straight-on photo of the case side to judge thickness.
- Request a macro shot of the dial printing and the crown cabochon.
- Get caseback and movement photos, not a stock image.
- Compare the seller's photos against official Cartier reference images.
- Confirm the return policy in writing.
None of these checks need a loupe or a lab. They need patience and a few good photos.