Short answer

The replica Blancpain 6654-1140-55B copies the Blancpain Villeret Quantième Complet. The real watch has a 40 mm steel case, an opaline white dial, a complete calendar, and a moon phase at 6 o'clock. Replica listings reuse the same reference string. Prices on replica sites run from about $150 to $600. The calendar apertures and the moon phase are the two parts that fail first on low-grade copies.

Specs of the genuine reference

  • Case: stainless steel, 40 mm wide, about 11 mm thick.
  • Dial: opaline white. Day and month sit in two apertures at 12 o'clock. A serpentine hand points to the date on the outer ring.
  • Moon phase: aperture at 6 o'clock.
  • Movement: Blancpain caliber 6654. Automatic winding. Blancpain lists a 72-hour power reserve.
  • Strap: alligator leather on a steel folding clasp.
  • Water resistance: 30 m.

What to check on a replica

  1. Dial print. Lettering on the genuine dial is thin and sharp. Thick or blurred print is the fastest tell.
  2. Aperture edges. Look at the day and month windows under a loupe. Rough edges point to a stamped dial.
  3. Moon phase disc. The disc turns once per lunar month. On cheap copies the disc is fixed, or it moves with the date.
  4. Calendar jump. The date hand should move in one step near midnight. Slow drift means a modified base movement.
  5. Case finish. Check the lug tops and the bezel edge. Brushed and polished surfaces should meet on a clean line.
  6. Caseback engraving. Reference numbers and hallmarks are laser etched on most copies. Depth and font vary. This is not proof of origin.

Movement grades

Three grades appear in the market. The low grade uses a Chinese automatic with a calendar module bolted to the dial side. The mid grade uses a cloned calendar module and keeps the moon phase. The top grade copies the 6654 layout and adds a decorated rotor. No replica maker publishes the base caliber for a given batch. Ask the seller for a photo of the movement and the caseback before you pay.

Limits to know

A replica is not a Blancpain. It has no factory service, no parts supply, and no warranty from the brand. Water resistance claims on replica sites are not tested, so keep the watch away from water. Resale value is close to zero. The 6654 calendar needs a correct setting sequence. Never set the calendar or moon phase between about 9 p.m. and 3 a.m., because the gears are meshed then.