The Cartier Ballon Bleu 36 mm uses a 36.6 mm case. Replica listings write the case code as 3366 and some add a digit to make 33661. Cartier's own code for the steel 36 mm automatic is W69012Z4. That watch runs Cartier caliber 049, an automatic with an ETA 2892-A2 base. A replica sold as "Swiss movement" carries one of three movements: a Swiss ETA or Sellita blank, an Asian clone of the same design, or an Asian movement with a Swiss label. Ask which one before you pay. The price gap between the three is about $150 to $400.
What the 33661 reference covers
The case is steel, 36.6 mm across, with a fluted crown set with a blue synthetic spinel cabochon. The crystal is sapphire. Cartier rates the watch at 30 m water resistance. The dial has Roman numerals and a guilloche center. The bracelet is steel with a hidden folding clasp. Any replica that misses the 36.6 mm case size is a different model, not a 33661.
Movement types in the replica supply chain
- ETA 2892-A2 or Sellita SW300. 21 jewels, 28,800 vph, 3.6 mm tall, about 42 hours of reserve. Thin enough for the 36 mm case. Rare in replicas and the most costly option.
- ETA 2824-2 or Sellita SW200. 25 jewels, 28,800 vph, 4.6 mm tall, about 38 hours of reserve. Swiss-made blanks exist, but most units sold under this name are clones.
- Asian clones. Sea-Gull ST2130 (2824 pattern), Hangzhou 6 series, and 2892 clones from PTS and Dixmont Guangzhou. Beat rate and finish vary by batch.
- "Swiss parts." An Asian-assembled movement with some Swiss components. The label is loose. Treat it as an Asian movement.
What the "Swiss movement" label means
Swiss law on the "Swiss made" label for watches requires at least 60% of manufacturing costs to sit in Switzerland. That rule took effect on 1 January 2017. "Swiss movement" is a separate label and is not printed on the dial. It states that the movement is Swiss and the watch was cased outside Switzerland. Sellers in the replica trade apply the phrase to Swiss blanks, to Swiss-assembled units, and to clones built in Guangzhou. The label alone proves nothing. Ask for the caliber name stamped under the balance cock and a photo of the rotor.
How to Spot a Fake Ballon Bleu 33661: Authentication Guide
Checks on delivery
- Rotor engraving: caliber name and font should match the movement inside.
- Hacking: the seconds hand should stop when the crown is pulled to the setting position.
- Beat rate: 28,800 vph equals 8 beats per second. Count against a stopwatch or use a timegrapher app.
- Power reserve: 30 to 40 turns of the crown should reach full wind. A clone that stops after 20 hours is not a 2892.
- Crown: blue cabochon, fluted edge, correct size against the case flank.
- Water resistance: most replicas hold a static 30 m test at best. Do not swim in one.
Price bands
- $80 to $150: Asian 2813, no Swiss content, thick case.
- $250 to $400: Asian 2824 or 2892 clone, sapphire crystal, correct case size.
- $450 to $700: Swiss ETA or Sellita blank, better bracelet finish, closer dial print.
Limits and legal status
Counterfeit watch sales are illegal in the United States under 18 U.S.C. section 2320, and customs can seize shipments. Cartier service centers will not service a replica. A local watchmaker can swap a movement or regulate one. Accuracy on a regulated clone runs about plus or minus 15 seconds a day. A Swiss blank runs closer to plus or minus 10 seconds a day after regulation.