Short answer
If you are chasing a Blancpain Villeret Complete Calendar 6654B, the only workable rule is to buy from a source that can document movement service, serial number, and full set, then have an independent watchmaker open the case before you pay. The 6654B is one of the most frequently copied Blancpain references, and every fake on the market misses the single detail that defines the model: the calendar correctors sit under the lugs, not on the flank of the case. If a watch sold as a 6654B has pushers or recessed buttons on the case band, the case is generic and the seller's accuracy claims are false. In the United States, trafficking in counterfeit goods is a federal offense, so the practical answer and the legal answer point the same direction: buy verified, not replicated.
What the reference actually is
The 6654 belongs to Blancpain's Villeret line and is a complete calendar, showing day, date, month, and moon phase on a balanced dial. The case measures roughly 40 mm and wears thin, which is exactly why fakes look convincing in listing photos. Calendar changes are made with a correction tool inserted through openings hidden under the lugs, keeping the case band smooth and free of visible pushers. The movement is an in-house automatic with about 72 hours of power reserve, finished with Geneva stripes and a signed rotor, and recent production uses a silicon balance spring. Front and back crystals are sapphire, and the caseback is engraved with the reference and serial.
What to look for during an inspection
- Ask for photos of the case flanks and the underside of the lugs. No correctors and no smooth band means the watch is not a faithful 6654.
- Compare dial details against official Blancpain imagery: the shape of the date hand, the moon phase disc, aperture framing, and the applied markers.
- Check the moon phase disc for a printed flat image. Real examples show a graduated sky and a moon with surface detail.
- Verify the serial on the caseback against the warranty card, box label, and any service paperwork.
- Have a watchmaker inspect the movement architecture, not just the rotor engraving, since engraving is the easiest thing to copy.
Parameter bands worth remembering
- Case diameter: about 39.5 mm to 40.5 mm for the standard steel versions
- Case height: roughly 10.5 mm to 11.0 mm, notable for how slim it sits
- Lug width: typically 20 mm, with an alligator strap and a signed deployant or pin buckle
- Crystals: sapphire on both sides, with an anti-reflective coating on the front
- Power reserve: around 72 hours from a full wind
- Case band: no calendar pushers, correctors located under the lugs only
Common pitfalls
Listings that never show the case flanks or the movement are hiding the two things that settle authenticity fastest. Heavy photo editing, stock renders, and generic white backgrounds all point the same way. Be wary of sellers who quote grading language instead of a reference number, who push a fast decision, or who refuse a return window. A mismatched serial between caseback and papers is a hard stop. So is a four-figure asking price on a steel complete calendar, which in real condition runs well into five figures. Aftermarket dial swaps are common, so ask whether the dial has ever been replaced and by whom. Finally, remember that a counterfeit carries no service path, no parts availability, and no recourse if the movement fails.
FAQ
Is there a replica that gets the under-lug correctors right?
None that has been documented. If correctors are visible on the case band, the case was never made for this reference.
Are 6654 and 6654B the same watch?
The base reference is 6654. Suffixes describe case metal, dial, and variant codes, so confirm the full reference before comparing prices.
Can a jeweler authenticate it without opening it?
No. Dial and case finishing get copied well. Movement architecture and the corrector mechanism require the caseback to come off.
Why does the legal angle matter to a buyer?
Purchasing is one thing, but reselling, importing, or shipping counterfeit goods exposes you to federal liability in the US, and no grading scale changes that.