The short answer
The number 6654-1127 is a Blancpain Villeret Quantième Complet: a 40mm automatic in stainless steel with a complete calendar (day, date, month) and a moonphase at six o'clock. Anything sold as a "fake Villeret 6654-1127" is a copy of that watch, and the copies run from $90 flea-market junk to $500-plus builds that get the dial layout right and the finishing wrong. No replica matches the genuine article, because the calendar work and the moonphase drive are the expensive parts and no factory outside Switzerland reproduces them at Blancpain's level. If someone is showing you one, the tells sit in the dial details, the correctors, and the movement.
What the reference tells you first
Blancpain builds reference numbers in blocks. The 6654 is the movement family, the 1127 narrows the case and dial combination, and the suffix that follows spells out case metal, dial color, and strap. A seller who writes "6654-1127" and stops there either does not know the watch or is hoping you do not. Ask for the full number engraved on the caseback, then compare it against the real configuration. A mismatched suffix is the easiest way to spot a listing copied off a stock photo.
Dial tells
- Moonphase. The genuine disc shows a silvered moon face against a blue-black sky with a scatter of stars. Fakes print a flat white circle, a cartoon face, or a sun-and-moon day/night wheel that just spins once a day. Count the stars and check the curve of the disc against the edge of the aperture.
- Date. Blancpain uses a blued serpentine hand that sweeps an outer date track. Copies substitute a straight needle, a printed arrow, or a hand so thin it looks stamped.
- Print and markers. The real "Blancpain" and "Villeret" text is thin and crisp, and the applied numerals are gold and sit proud of the dial. Fakes show fuzzy pad printing, flat or chrome-tone markers, and letterforms that drift.
- Apertures. The day and month windows on the real watch are cut cleanly with a slight bevel. Replicas punch them straight through with burrs, or frame them oversized to hide sloppy printing underneath.
Case, crown, and correctors
The case is about 40mm across and slim for a full calendar. Copies that stack a calendar module on a thin base movement end up taller and heavier in the wrong place, and the lugs feel slab-sided when you run a thumb along them. Push the correctors: the genuine ones are recessed into the caseband, need a tool, and each has one job. On fakes they sit high, wobble, or do nothing because the calendar is a printed disc. The crown should be signed, sit flush, and wind with a smooth ratchet instead of a gritty grind.
Movement and caseback
Flip it over. The genuine Calibre 6654 is automatic with a gold rotor, hand-applied Geneva stripes, polished bevels, and engraving you can read under a loupe. Copies use a decorated generic automatic, often a Chinese base with a module bolted on top. Look for machine-straight stripes, a rotor with mirror shine and no depth, and screw slots that are chewed up. Check the caseback engraving as well: reference, serial, and the Swiss Made mark should be sharp and spaced correctly.
Price bands and what they mean
- Under $150: junk. Acrylic crystal, printed dial, quartz tick or a rattly automatic.
- $150 to $400: entry autos with a real calendar module. Layout close, finishing rough, moonphase often a 24-hour wheel.
- $400 to $800: the best you will find. Correct dial layout, decent case, still the wrong movement and wrong moonphase gearing.
- Genuine steel on a strap: five figures. Anything claiming to be real at a fraction of that is not.
Before you buy anything
Ask for a video of the moonphase running, a timed close-up of the date hand advancing, and a movement shot at 10x. Request the full reference from the caseback. If the seller dodges any of those, walk away. If you want the real watch, buy from a dealer who will open the caseback and show you the calibre, then get it serviced and verified. If you want a copy, buy it knowing you are purchasing a costume and not a Blancpain, and price it that way.