Short answer
33702 is a Cartier case reference, not a model name. It appears on the caseback of the 42 mm Ballon Bleu de Cartier in stainless steel with an automatic movement. The catalog code for that watch is W69012Z4. A "fake Ballon Bleu 33702" is a copy of that 42 mm steel model. Cartier launched the Ballon Bleu line in 2007.
Genuine specs
Case: 42 mm steel, about 13 mm thick. Crystal: sapphire. Crown: fluted steel with a blue sapphire cabochon under a crescent guard. Dial: flinque guilloche with roman numerals and blued sword hands. Movement: automatic caliber 049, about 42 hours of power reserve. Water resistance: 30 m. Bracelet: steel with a folding clasp.
Price gap
Genuine retail for the 42 mm steel Ballon Bleu runs near USD 6,700. Second-hand examples trade near USD 4,000 to 5,500 with box and papers. Copies sell from USD 50 to 400. That spread is why this reference gets copied.
Copy tells to check
- Cabochon. Genuine is sapphire. Most copies use glass or plastic, and the dome looks flat.
- Caseback text. Genuine engraving has sharp edges and even depth. Copies show rounded, shallow cuts and wrong fonts.
- Dial texture. The genuine guilloche is cut into the dial. Copies print a pattern that looks flat under a loupe.
- Date window. Genuine sits at 3 o'clock with a clean aperture. Copies show a rough opening and misaligned font.
- Hands. Genuine uses blued steel. Many copies use painted metal that chips.
- Weight. A steel 42 mm Ballon Bleu feels heavy on the wrist. Copies run light.
- Movement. Genuine caliber 049 has engraved bridges and a signed rotor. Copies use generic movements with plain finish.
Serial numbers and papers
A genuine watch carries a serial number on the caseback that matches the warranty card. Copy sellers reuse numbers seen in online photos, so two watches can share the same digits. Cartier will not service a counterfeit. Any watchmaker who opens the case can identify the movement in minutes.
US law
Counterfeit watches are illegal goods. Trafficking is a federal crime under 18 U.S.C. 2320. Import is barred by 19 U.S.C. 1526, and Customs can seize a parcel. A copy carries no brand warranty, no service, and no resale value.