Name: Blancpain Villeret Quantième Complet 6654-1127-55B
Brand: Blancpain
SKU: 6654-1127-55B

The Villeret Quantième Complet puts a full calendar with moon phase into Blancpain's most refined dress case. Day, date, month, and moon phase read simultaneously on a dial that rewards close attention without demanding it. This is the complication Blancpain was built to make.

What it is

Blancpain revived the Villeret collection in the 1980s as the marque rebuilt its identity around haute horlogerie after the quartz crisis. The Quantième Complet followed naturally: the complete calendar is a traditional Swiss grand complication, and the Villeret case with its double stepped bezel and slim profile is the correct home for it. The 6654 caliber reflects Blancpain's long investment in in-house movement making, refined over decades at Le Sentier.

Rose gold became the predominant metal choice for this reference, matching the warm, archival character of the design. The watch has remained in continuous production since 2010 with only minor dial and strap variations.

Buying notes

The 6654 is a complete calendar, not an annual calendar. It requires manual correction at the end of every short month, not just once in February as sometimes described in listings. Buyers should verify the seller's terminology before purchasing.

The double-signed dial variants (retailer or boutique editions) are common and carry no premium. A full set with inner box, outer box, card, and hang tag matters more here than on sportier references because Blancpain collectors are particular about completeness. Dial condition is critical: the silvered or white lacquer dials show aging around the printed indices and subdial rings, and refinishing destroys value.

Inspect the moon phase display mechanism carefully on used examples, as the corrector pushers on the case flank are sometimes abused.

Market read

The 6654-1127-55B trades in the $12,000 to $18,000 range on the secondary market depending on condition and completeness. It is genuinely undervalued relative to comparably complicated Patek or A. Lange pieces.

Demand is steady but not speculative, which means pricing is rational and negotiation is possible with patient buyers.

Service expectations

The caliber 6654 is a self-winding movement with a central rotor and full calendar module. Blancpain recommends service every five to seven years. The calendar module requires careful reassembly to synchronize day, date, and month correctly after a service, so use a watchmaker with documented Blancpain experience.

Editorial copy is AI-drafted from primary sources and reviewed by Grail Atlas before publication. Where the text is uncertain about a fact, it says so. Email corrections@grailatlas.com if something reads wrong. Signals on this page (community, OSINT) are clearly separated from the editorial sections.

Mass-produced#2 in familyOfficial press photos

Condition affects price

Pre-owned watches trade across a wide condition spectrum. These ranges are typical for the secondary market.

New Old Stock

Unworn example retaining original packaging, tags, and warranty documentation.

+30–50% vs median

Unpolished

Worn but the case has never been polished; original brushed and polished surfaces are intact.

+15–25% vs median

Polished

Case has been professionally or amateur polished at some point; edge definition is softened.

-15 to -5% vs median

Recently Serviced

Movement has been recently serviced with documented service records; case condition varies.

At median

Project

Needs service, has dial or hand issues, non-original parts, or other remediation before daily wear.

-50 to -25% vs median

Full condition grading guide →

Market price

$18,000–$28,000

gold·2026 Q2

Price trend chart coming soon

The Villeret Quantieme Complet in yellow or rose gold brings perpetual calendar and 7-day power reserve in a classic double-stepped case; secondary prices are firm among dress watch collectors who value movement quality over brand recognition.

Editorial estimate, 2026 Q2. Actual prices vary by condition, date, and box/papers status.

Movement tier: unclassified · caliber Blancpain Cal. 6654: in-house automatic with complete calendar and moon phase, 28,800bph, 72h (3-day) PR, 28j; used in Villeret QC · 72h power reserve (3 days) · see-through caseback

Medium-large: suits wrists 6.5 in+ (16.5 cm+)

40 mm case. Wears confidently on average to larger wrists. May overhang on slender builds.

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Authentication

The moonphase disc artwork and the double-step Villeret bezel are the fastest fakes tells on the Villeret Quantieme Complet.

Known issues in the market

Counterfeit moonphase discs have evenly spaced stars and a cruder moon rendering than genuine Blancpain artwork.
The double-step bezel is case-integrated; non-genuine cases have a single-step or flat bezel profile.
Perpetual calendar correctors are under pushers in the case; verify all four correctors (date, day, month, moonphase) respond correctly.

Area	What to check	What is correct	Red flag
dial	Moonphase disc moon rendering and star distribution	Hand-painted moon with subtle shading; stars randomly distributed across the disc	Flat printed moon with no shading; stars in a regular geometric pattern
case	Double-step bezel profile	Two distinct steps on the bezel edge, both meeting the crystal and case cleanly	Single-step or flat bezel indicating a non-Villeret case
caseback	Cal. 6654 twin barrel	Two barrels visible through sapphire caseback; movement signed Blancpain	Single barrel or unsigned movement indicating a movement swap

Common legitimate replacements

Cal. 6654 perpetual calendar modules are Blancpain proprietary; service parts are not available to independent watchmakers.
Moonphase discs are occasionally replaced with non-genuine parts after damage; verify the artwork quality under magnification.

Expert resources: Blancpain Villeret collection documentation at blancpain.com. WatchUSeek Blancpain subforum for moonphase disc artwork comparison between genuine and replacement parts.

Authentication guide

Last reviewed June 2026

The Villeret Quantieme Complet carries a full calendar with moonphase on caliber 6654. Seven-day power reserve, 37 jewels, 12 total complications. The combination of the Villeret double-stepped case and the full calendar display is the primary inspection framework.

Known reproduction risks

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HIGH RISK

Wrong movement -- full calendar functions absent

Dial lacks day, date, and moonphase windows in the correct positions
Caseback movement shows no calendar module above the base movement
Power reserve depletes in under 48 hours

MEDIUM

Non-concentric movement decoration

Straight Cotes de Geneve stripes rather than Villeret circular pattern
No anglage on bridge bevels
Rotor finishing inconsistent with Blancpain standards

Dial variants by era

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Era	Description	Identifiers
2010 to present	White or silver guilloche dial with Roman numeral chapter ring. Three registers: day at 12, date pointer at 6, moonphase disc with month and leap year at lower half. Moonphase disc shows a traditional gold moon on a blue or blue-black sky. The display is symmetrical around the 6 o'clock axis.	Day-of-week aperture at 12 o'clock Retrograde or jumping date pointer at 6 o'clock (varies by sub-variant) Moonphase disc in lower half with gold moon on blue field Month and leap year indicator on the moonphase register "BLANCPAIN" at 12, "Villeret" in script below on most variants Double-stepped case visible even without removing the watch from its strap

Service part flags

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Moonphase disc

Original: The moonphase disc on the Villeret QC is a deep blue disc with a gold-painted or gold-applied moon. The disc should rotate smoothly when corrected via the corrector pushers. The stars on the disc (if present) are applied individually on high-end variants.

Replacement tells

Moonphase disc color is grey or pale rather than deep blue
Moon is printed flat rather than appearing three-dimensional or applied
Stars are screen-printed rather than individually applied dots
Disc does not advance cleanly at midnight correction

Caseback exhibition

Original: Caliber 6654 is visible through the sapphire display caseback. The movement has concentric circular Cotes de Geneve on the bridges (Villeret family standard). The automatic rotor is a full-size rotor (not micro-rotor) on caliber 6654, unlike the Ultra-Slim. The rotor bears "BLANCPAIN" engraving.

Replacement tells

Straight Cotes de Geneve stripes (not the concentric circular Villeret pattern)
Micro-rotor on a watch claimed as QC -- caliber 6654 has a full-size rotor
Rotor absent or of non-Blancpain profile
Movement bridges show no surface decoration

Calendar correction pushers

Original: Recessed pushers in the case band for setting the individual calendar modules independently. The pushers are accessed via a pin tool (included with the watch). They should engage cleanly with a felt click when pressed.

Replacement tells

Pushers cannot be depressed or show play without actuation
Corrector access positions in wrong locations for Villeret QC layout
Calendar modules do not advance when pushers are pressed

Case back markings

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2010 to present

Caliber 6654 designation engraved
"BLANCPAIN" with mountain logo
Water resistance: 30m
Reference 6654-1127-55B with serial number
"LE BRASSUS" on some production examples

Movement tells

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Caliber 6654 has a 7-day (168-hour) power reserve from twin barrels. A watch that stops after 2 days from full wind does not have the original caliber or has a badly worn mainspring.
The full calendar advances at midnight automatically. If the date, day, and month do not advance synchronously at midnight (or within a narrow window around it), the calendar module requires service.
The moonphase is mechanically driven and accurate to within approximately 2.5 hours over a full lunar cycle. It needs manual correction roughly twice per year. A moonphase that gains or loses one day within a month has a damaged drive mechanism.

Sources: Blancpain official; WatchUSeek Blancpain forum.