Short answer
A fake Ballon Bleu 33680 shows four common tells: a crown cabochon made of glass or plastic, a dial without the hidden CARTIER signature inside the VII numeral, shallow caseback engraving, and a movement that runs at the wrong beat rate. The real watch is a Cartier Ballon Bleu de Cartier with case number 33680 stamped on the back. Cartier fits the steel 42 mm automatic with caliber 049, an automatic movement with 21 jewels and a rate of 28,800 vibrations per hour (4 Hz). Fakes use a quartz module or a low-grade automatic. A photo check settles little. A watchmaker who opens the case back gives a final answer.
Replica Cartier Ballon Bleu 33680: What the Code Means
What the number 33680 means
Cartier stamps a case number and a serial number on the back of each Ballon Bleu. 33680 is the case number, not the serial number. It marks a model line, so thousands of watches carry the same digits. The serial number sits next to it and is unique to one watch. Cartier does not publish a public table that maps case numbers to reference numbers. A Cartier service center or an authorized dealer can confirm the match from the serial number. The 42 mm steel automatic in the same family is sold under reference W69012Z4.
fake cartier ballon bleu model 33680
Movement
- Caliber 049: 21 jewels, 28,800 vph, power reserve near 42 hours.
- Base: ETA 2892-A2, finished for Cartier.
- Fake automatic: 21,600 vph, 3 Hz, second hand moves in steps.
- Fake quartz: second hand ticks once per second.
- Rotor engraving on fakes is stamped, not cut, and the font weight is wrong.
Set the watch down for 40 hours and check the time. A real 049 keeps running within a few seconds per day after a full wind. A fake stops or loses minutes.
Case, crown and cabochon
The real cabochon is a domed synthetic blue spinel set into the crown. The crown guard flows out of the midcase, and the guard sits inside the bezel ring. On fakes the cabochon is flat, plastic or glass, and glued. A seam shows between the guard and the case. The crown flutes feel sharp, and winding makes a rough click.
fake cartier ballon bleu model 33680
Dial
The dial carries a guilloché pattern of concentric waves that continue under the Roman numerals. Cartier works the word CARTIER into the VII numeral. Fakes print plain numerals, leave the waves flat, or drop the hidden signature. The date sits at 3 o'clock with no magnifier on the real dial. A cyclops lens points to a fake. Under 10x magnification, printed text on a fake shows jagged edges and uneven spacing.
Caseback engraving
Real engraving is cut with a laser and reads crisp at 10x. Fakes use shallow stamping. Look at the swan logo, the reference, the case number, the serial number and the water resistance line. Misspelled words, a wrong font and uneven digit height all point to a fake. Steel grade matters too. Casebacks on real watches fit flush with no burr.
Price and paperwork
Used steel Ballon Bleu automatic watches sell in the thousands of US dollars. Fakes sell for tens of dollars to a few hundred. A low price, a missing box, a missing warranty card, or a seller who blocks a service center check are all signals. Cartier does not authenticate watches by photo.
Checks a buyer can run
- Weigh the watch. Real steel 42 mm cases run near 90 g on a strap.
- Watch the second hand for 60 seconds.
- Ask for a photo of the caseback at 10x.
- Find CARTIER inside the VII with a loupe.
- Ask the seller for the serial number and call a Cartier service center.
- Pay for a watchmaker to open the back and check the jewel count.
One limit: no list of fake case numbers exists in public. Two watches with case number 33680 can both be real, because the number repeats across a model line. The serial number is the field that separates one watch from another.