Answer first
6654-1127-55 is a Blancpain reference number. It identifies the Villeret Quantième Complet in stainless steel, a complete calendar watch with a moon phase. A replica sold under that number is a counterfeit built by an unrelated factory to resemble the Blancpain original. It shares a case diameter, a dial layout, and a printed reference. It does not share the movement, the calendar mechanism, the finishing, or any part of Blancpain's service and warranty system. If someone offers you a watch described that way, treat it as a copy and price it as one.
The genuine reference
The Villeret 6654-1127-55 uses a 40 mm stainless steel case, an opaline white dial with applied Roman numerals, and an alligator strap. Inside sits the in-house caliber 6654, an automatic movement with a 72 hour power reserve. The calendar shows day, date, and month, with a moon phase at 6 o'clock. Blancpain hides the calendar correctors under the lugs so the case band stays clean. Sapphire covers the dial and the case back.
What copies get right and what they miss
Case diameter, dial color, and the position of the subdials are the easy parts. A factory can print a convincing dial and drop it into a steel case. The hard parts are the ones you cannot photograph well: the calendar mechanism, the moon phase disc, the corrector placement, the crown feel, and the hand finishing. Most copies drive the calendar with a generic module bolted to a low grade automatic movement. That module adds height, which is why copies sit thicker on the wrist than the numbers suggest.
How to examine one before money changes hands
- Measure the case across the bezel, then lug to lug, then thickness. The original is 40 mm wide and close to 11 mm thick.
- Set the watch near midnight and watch the calendar move. On the real caliber, day and date advance together with the month.
- Study the moon phase. The original disc is painted and polished under an aperture. A copy is a flat print that shifts on a daily gear.
- Hunt for the correctors. If you can find four recessed pushers around the case band, you are looking at a copy. On the Blancpain they hide under the lugs.
- Turn the watch over and read the movement. The original shows a signed rotor and striped bridges. A copy shows a stock automatic with an engraved plate.
- Ask for the invoice, the warranty card, and the serial number. A seller who cannot produce paperwork is offering a copy or a stolen watch.
Legal and practical risk
Counterfeit watches are illegal to import into the United States, and Customs and Border Protection can seize a shipment. You lose the money and the watch. Selling a copy as genuine is fraud. Past the law, a counterfeit has no parts supply, no authorized service, and no resale market. A watchmaker who opens the case back will tell you what it is in under a minute.
Better ways to get the look
If the calendar layout is what draws you, look at an earlier generation Villeret, or at a complete calendar from a mid-range brand with a real service network. Both hold value and both can be repaired. That is a different budget from a counterfeit, and a different object.