Short answer
The reference 6654-1140-55B is a Blancpain Villeret Quantième Complet. The case is stainless steel. The movement is the in-house caliber 6654, an automatic with a complete calendar and moon phase. Blancpain does not publish a public code table for the four-digit case block, so the exact meaning of "1140" is not confirmed here.
Replica versions of this reference exist and are sold as 1:1 or super clone. Photos in factory listings show the same dial layout as the genuine watch. The differences sit in the movement, the calendar module, and the case dimensions.
Genuine specifications
- Caliber 6654, automatic, 72 hour power reserve
- 4 Hz (28,800 vph), 28 jewels
- Complete calendar: day, date, month, moon phase
- 40 mm case diameter
- Sapphire crystal front and caseback
- Water resistance 30 m
- Calendar correctors set under the lugs, not on the case band
- Alligator strap with a folding clasp
The "55B" suffix in Blancpain references marks the strap code.
How replicas differ
Movement
A replica uses an Asian automatic, such as a modified ETA 2824 pattern or a domestic clone with a bolt-on calendar module. The rotor turns. The calendar does not snap like a 6654. Replica movements run 38 to 42 hours on a full wind, not 72.
Under-lug correctors
The genuine watch hides four correctors below the lugs. Replica cases skip them or fit dummy pins. The pusher moves and nothing changes. Some replicas add small pushers on the case band. The genuine watch has none.
Case and dial
Replica cases measure 1 mm to 2 mm thicker. Lugs run wider. The day and month wheels use the wrong font. Moon phase discs are printed flat with no depth. The "JB" signature on the caseback is etched, not engraved, and sits shallow.
Reference numbers
Listings reuse 6654-1140-55B across dial colors that never shipped under that code. Photo sets mix two different watches in one album.
Price context
Steel Villeret complete calendar models sit in the low five figures in US dollars. Replica listings price between USD 300 and USD 900. Confirm current pricing with an authorized dealer. No fixed MSRP for this exact reference could be verified.