Short answer

A fake Breguet 7787BB is a replica of the Breguet Classique 7787 in white gold. Listings run about $120 to $600. The replica copies the dial layout, the 39 mm case shape, and the display back. It does not match the gold case, the calibre 591 DRL movement, or the engine-turned dial. The real reference lists above $30,000 in the US market.

The real reference

Breguet reference 7787BB/12/9V6 sits in the Classique line. The letters BB mark 18k white gold in the Breguet reference code. Listed specs: 39 mm case, self-winding calibre 591 DRL, 38 hour power reserve, silvered gold dial with guilloché, moon phase aperture at 12 o'clock, power reserve sector, sapphire crystal front and back, alligator strap. Price and spec change by year. Confirm both with Breguet.

What the replicas share

Fake 7787BB watches come from a small number of Chinese factories. Common build: 39 to 40 mm steel case, mineral or sapphire glass, stamped or printed dial pattern, leather strap, display back, and an automatic movement with a moon phase disc added on top. Sellers use labels such as 1:1, AAA, and super clone. Those labels mark price tiers. They do not mark tolerance.

Where replicas differ from the real watch

  • Metal. Real: 18k white gold. Replica: 316L steel with rhodium plating. Case weight differs by tens of grams.
  • Dial. Breguet cuts guilloché on a rose engine. Replicas stamp or print the pattern. At 10x the replica lines show even depth and rounded edges.
  • Moon phase. Real: 29.53 day cycle, set with a corrector. Replica: often a day and night disc on the hour wheel. It turns once in 24 hours.
  • Power reserve. Real: a working differential on the mainspring. Replica: often a printed sector or a hand that does not track wind.
  • Movement. Real: calibre 591 DRL, 38 hours, 4 Hz. Replica: Seagull ST17 or Hangzhou base with a module, 3 Hz or 4 Hz, with rate and amplitude off spec on a timegrapher.
  • Marks. Real: deep engraving, individual case number, gold hallmarks. Replica: laser engraving, shallow cut, hallmarks that do not match the metal.

Price tiers seen in listings

$120 to $250: quartz or basic automatic, printed dial. $300 to $600: decorated automatic, sapphire glass, a working moon phase in some units. Above $800 the parts cost does not support the price. A box and papers add cost and prove nothing about the watch.

Six checks before you pay

  1. Weigh the watch. Gold and steel do not match.
  2. Loupe the dial at 10x. Engine-turned lines cut the surface. Printed lines sit on it.
  3. Set the moon phase, then check it after three days.
  4. Run a timegrapher for rate, amplitude, and beat error.
  5. Ask for the case number. Breguet keeps archives for watches it made.
  6. Open the back with a watchmaker. Look at the rotor engraving and the balance.

Legal note for US buyers

Counterfeit watches are illegal to sell or traffic in the US. CBP can seize shipments at the border. A buyer gets no warranty and no service from Breguet, which does not repair watches it did not make.