Short answer
The Breguet Classique 7787BR is a 39 mm rose gold dress watch. The dial carries a moon phase at 6 o'clock and a power reserve scale at 12 o'clock. Replica copies sell for $180 to $600. Most run an Asian automatic at 28,800 vph with 38 to 42 hours of reserve. The moon phase is the part that separates a $200 copy from a $500 copy. A printed disc that never moves is the common shortcut. Ask the seller for a 30-day photo set of the moon aperture before payment.
Genuine specs to compare against
- Case: 39 mm, 18k rose gold, sapphire crystal front and back. The BR suffix in the reference code marks rose gold.
- Dial: silvered gold with hand-turned guilloché, moon phase at 6, power reserve sector at 12.
- Movement: caliber 591 DRL, automatic, 38 hours of reserve, 28,800 vph, silicon balance spring and escape wheel.
- Strap: alligator with a gold pin buckle.
- Water resistance: 30 m.
Movement tiers in replicas
Listings fall into three groups. Specs differ by seller, so confirm each item in writing.
- $150 to $250. Base automatic, often 21,600 vph. Printed moon disc. Power reserve scale is paint, not a hand.
- $250 to $400. Working moon phase module on a 59-tooth wheel. Power reserve hand moves. Base runs at 28,800 vph. Guilloché is stamped. Some units have AR coated sapphire.
- $400 to $600. Deeper dial pattern, better case finish, signed crown, closer hands and markers. Movement decoration copies the 591 layout, not the real gear train.
Checks before payment
- Measure the case. A 40 mm or 41 mm case is not the 7787 shape.
- Set the moon phase with the corrector. It should step about one position per day. Track it for 30 days.
- Wind the watch and set it down. A working power reserve hand drops over 38 to 42 hours.
- Inspect the guilloché with a 10x loupe. Stamped ridges are shallow and repeat with no variation.
- Check lug plating and crown threads. Rose gold plate on brass wears at the lugs first.
Limits of any replica
Caseback engraving, rotor finish, and hand bevels differ from the genuine watch. Service is the weak point. A clone moon phase module has no spare parts chain, and many watchmakers decline the work. Water resistance is not tested by the factory, so keep the watch dry. Resale value is a small fraction of the price paid.
Price of the genuine watch
Genuine 7787BR pieces list above $30,000 at retail, and pre-owned prices sit below that. That gap is why the replica market exists. Buy on movement function, not on case photos.