The Blancpain Villeret Quantième Perpétuel 6656-3653-55B pairs a traditional perpetual calendar with a contemporary green sunburst dial and red-gold case. Its automatic caliber 5954.4 is listed with a 72-hour power reserve; the calendar includes moon-phase and leap-year indications. The specifications below apply to this complete reference, not every watch described simply as a “6656.”
What the 6656-3653-55B offers
This reference combines the Villeret collection’s formal presentation with a calendar designed to account for the changing lengths of months and leap years. Blancpain identifies it as a perpetual calendar with moon phases, leap-year indication and seconds. The exact interval over which its calendar requires no correction is not specified in the cited technical sheet, so it is best not to infer a particular century-spanning limit.
The displayed calendar information makes this more than a date watch: the wearer can read the calendar indications and moon phase from the dial, while the leap-year indication helps show the calendar cycle. Blancpain’s technical sheet also identifies under-lug correctors and a secured movement. These are design features, not a substitute for reference-specific setting instructions.
Specifications for reference 6656-3653-55B
| Specification | Blancpain listing |
|---|---|
| Movement | Automatic caliber 5954.4; the technical sheet identifies caliber 5954. |
| Power reserve | 72 hours, according to Blancpain’s product listing. |
| Calendar and display functions | Perpetual calendar, moon phases, leap-year indication and seconds. |
| Case material | Red gold. |
| Case diameter | 40.30 mm. |
| Case thickness | 10.70 mm. |
| Dial | Green sunburst. |
| Caseback | Sapphire. |
| Strap | Alligator leather. |
| Lug width | 22 mm. |
| Water resistance | 3 bar. |
These are the specifications Blancpain lists for the 6656-3653-55B; the brand notes that it may modify models and technical characteristics. Its 2024 technical sheet is the strongest reference-specific source for the functions, while the product page provides the listed dimensions and construction. Check Blancpain’s current information before relying on a specification for a purchase.
#1 Best Overall
- Men's luxury timepieces with technical advancements and a sporty style
- 1/5 Second Chronograph Measures up to 60 Minutes, 12/24 Hour Time, Date
- Silver-Tone Stainless Steel
- Spherical Mineral Crystal, Blue Dial
- 100 Meters Water Resistant and 5 Year Limited Warranty
How the calendar protection affects ownership
Calendar watches with multiple indications require care when adjusting them. For this model, Blancpain documents correctors under the lugs and describes the movement as secured; its editorial material discusses protection for the perpetual-calendar mechanism. Those details support describing the design, but they do not establish a safe adjustment sequence or the conditions under which a corrector may be operated.
Do not use a generic perpetual-calendar setting guide for this watch. Consult the current owner’s manual or Blancpain service guidance for the exact reference, particularly if the calendar has stopped or is out of synchronization. The available official materials cited here do not provide a setting procedure.
Rank #2
- With bold design and superior accuracy, Citizen AT watches synchronize to an atomic clock with a margin of error of just one second in 100,000 years
- 1/20 Second Chronograph Measures up to 60 Minutes, Perpetual Calendar, 12/24 Hour Time, Power Reserve Indicator, Day/Date
- Silver-Tone Stainless Steel
- Anti-Reflective Sapphire Crystal
- 200 Meters water resistant and 5 year limited warranty
What to verify before buying a 6656
“6656” alone is not a complete model identifier. Case metal, dial and other details can vary across the family, so match the full reference printed on the listing and verify it against the watch and its documentation. For the configuration described here, that reference is 6656-3653-55B.
- Confirm the complete reference suffix rather than relying on a title that says only “6656.”
- Check that the listing’s case material, green dial and specifications match the 6656-3653-55B.
- Ask about condition, included documentation and the seller; official product information does not establish a particular retailer’s stock or the condition of an individual watch.
- Use Blancpain’s current product information or a boutique to confirm details that matter to your purchase.
Also distinguish the Quantième Perpétuel from Blancpain’s Quantième Complet models. They are different calendar types and should not be treated as interchangeable simply because both show calendar information. Blancpain’s official Italian product page contains an inconsistent descriptive paragraph referring to a complete calendar and caliber 6654.4; its text should not override the 6656 heading and enumerated specifications when identifying this reference.
Quick Recap
Rank #4
- Timeless styling that effortlessly takes you from work to play.
- Analog Month/Day/Date, Moonphase Indicator
- Two-Tone Stainless Steel
- Spherical Mineral Crystal
- 100 Meters Water Resistant and 5 Year Limited Warranty
Rank #3
- ⌚Automatic Slef-Wind Watch:The precision movement is equipped with fully automatic winding, stable ball bearings, 21,600 times per hour, built-in 21 synthetic diamonds, 45 hours of energy storage, and more than 10 years of use.
- ⌚Classic 6 Hand Dial Design:OLEVS meticulously designed 4 calendar functions of year/month/week/day to meet all customer needs, a multi-function watch with multiple times.The classic bottom moon phase window is a classic watch for gentleman men.
- ⌚Luxury 316L Stainless Steel Strap:Solid stainless steel watch bracelet, hidden butterfly pushed button, ventilate, prevent perspiration, quality assurance.Two adjustment tools are provided to easily adjust the strap length.
- ⌚30ATM Waterproof:Three-degree nano-level sealed waterproof, ultra-high waterproof performance, innovative and enhanced anti-fog, 30 meters strong pressure waterproof,suitable for everyday life waterproofing, such as washing hands, doing housework, and briefly soaking in water.
- ⌚OLEVS Warranty Service:We provide 30 days free returns,2 years product high-quality assurance for the automatic watch.If you have problems during the use of the wristwatch,please feel free to contact us. We will offer you a professional service!
Sources and specification notes
- Blancpain 6656-3653-55B technical sheet (2024) for the caliber family, calendar functions, under-lug correctors and secured movement.
- Blancpain product page for the listed configuration, dimensions, water resistance and power reserve. Blancpain’s descriptive paragraph conflicts with its own reference heading and enumerated specifications, so the latter and the technical sheet are used for identification.
- Blancpain editorial overview of perpetual-calendar movements for general movement context.
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