Quick answer
A replica Breguet 7787BR is worth considering only if four things check out: the case measures and wears like the real 39 mm rose gold reference, the dial layout matches a photo of the exact case code, the moon phase and power reserve indicator both work, and the seller can name the movement inside. Most copies fail on the moon phase, which is often a printed disc that never turns, and on the power reserve hand, which is frequently decorative and fixed.
What the genuine 7787BR is
The Breguet Classique 7787BR is a 39 mm rose gold dress watch with a silvered guilloché dial, Roman numerals, a moon phase display, and a power reserve indicator. The suffix in the case code tells you the metal: BR is rose gold, BB is white gold, BA is yellow gold. Breguet fits an in-house self-winding caliber with roughly 38 hours of reserve. That combination of two complications at this case size is what makes the model hard to copy well, and it is why the replica market splits sharply between cheap printed dials and small-batch builds with modified movements.
How to check one, step by step
- Ask the seller for the case code printed on the reference photo they are copying, then open a photo of that exact code from Breguet's own catalog.
- Measure the case across the bezel with calipers and confirm it reads 39 mm, not the 40 to 41 mm common to generic dress cases.
- Check the lug shape and thickness against the reference photo, since thin straight lugs are a frequent tell on copies.
- Set the watch to a known moon phase date and confirm the disc advances correctly over several days.
- Wind the watch fully, then watch the power reserve hand move down over a day of wear to confirm it is linked to the mainspring.
- Turn the crown in both positions and confirm hand winding, date or moon setting, and hacking all behave as they should.
- Look at the dial under a loupe for printed guilloché rather than cut guilloché, which shows as flat gray lines with no shadow.
- Ask which movement is fitted, then check that the stated caliber matches the case thickness the seller quotes.
- Inspect the caseback engraving and serial font against the reference photo before paying.
Red flags
- Moon phase that is a painted disc with no aperture depth.
- Power reserve scale printed on the dial with no hand.
- Seller quotes 39 mm but photos show a thicker case than the reference.
- Rose gold plating described as solid rose gold.
- No movement name given, or a generic answer such as "imported automatic."
What price tiers buy
Entry copies use a stock automatic with a printed dial and a fixed moon disc. Mid tiers add a working moon phase module and better guilloché finishing. Top tiers use a clone or modified Swiss-pattern movement, cut guilloché, and correct case proportions. Ask yourself which of those three you are being quoted for before you compare prices, because the model name alone tells you nothing about what is inside the case.