Short answer
A replica 7787BR stands or falls on four things: the dial surface, the rose-gold color, whether the moon phase and power reserve actually function, and how thick the case sits on the wrist. Get the first two right and the watch reads correctly at arm's length. Miss the last two and anyone who winds it will know in about ten seconds.
What the 7787BR is
Breguet's Classique 7787BR/12/9V6 is a 39mm rose-gold dress watch with a kiln-fired enamel dial, Breguet numerals, a moon phase display and a power reserve indicator, all driven by an in-house self-winding movement. The case band carries the fluted, coin-edge finish that runs through the Classique line, and the profile is slim enough to slide under a cuff. That slim profile is exactly what most replicas get wrong.
The dial is the first tell
Grand feu enamel is fired, not printed. It has depth, a soft gloss, and tiny irregularities along the edges where the powder pooled. Cheap replica dials use lacquer or a decal, which looks flat, slightly gray, and harsh under a phone flash. When you look at photos of a rep, tilt the dial into a light source. Real-looking enamel keeps a creamy white tone. Printed dials go chalky or pick up a green cast.
- Numerals: Breguet numerals are elongated and tapered, not chunky or uniform.
- Hands: blued steel with the hollow moon-tip shape. Painted blue is an instant giveaway.
- Moon phase: the disc should have a brushed, silvery moon face, not a flat white circle.
- Printing: the logo and the power reserve scale should be crisp at 2x zoom on a phone photo.
Case, gold and thickness
Solid rose gold has a warm, slightly coppery tone and feels heavy in the hand. Plating looks pinker and more uniform, and it wears thin at the lugs and caseback edges within a year or two of daily use. Run your thumbnail along the fluted case band. Sharp, evenly spaced ridges are a good sign. Muddled, rounded ridges are not.
Thickness matters more than most buyers expect. Modular replica movements add 1mm to 2mm, so the watch sits taller on the wrist and the caseback floats. Ask for a caliper photo next to the caseback. Anything much past 11mm is going to look wrong under a shirt cuff.
The power reserve, and why it decides things
This is the honest test. On the real 7787BR the power reserve hand falls as the mainspring unwinds, over roughly 40 hours. On many replicas it is a decorative scale with a hand glued to one spot, or a hand that simply tracks the time. Wind the watch fully, set it down, and film it. If the reserve hand moves on its own through the day, you have a functioning module and a much better watch. If it does not, you have a dial and a case, and nothing else.
What to ask before paying
- A short video of the power reserve hand moving on its own.
- Dial photos angled to a window, not straight-on under a lamp.
- A caseback shot showing rotor engraving and movement finishing.
- Calipers across the case, mid-case, not at the crown.
- Strap details: real alligator grain versus embossed calf, and a buckle that matches the case tone.
Setting expectations
A replica is a look-alike, not a Breguet. It will not hold value, service options are limited, and the movement finishing will not survive a loupe. What the better versions do well is presence: correct proportions, correct dial tone, correct weight on the wrist. Buy the one that gets the dial, the gold tone and the thickness right, and treat the working power reserve as the tiebreaker that separates a good replica 7787BR from a costume piece.