The Blancpain Villeret Quantième Complet reference 6654 3640 55B pairs a sunburst blue dial with a red-gold case and a complete calendar with moon phase. It is a dress watch whose appeal rests on that combination of calendar display, traditional styling and a technically specified automatic movement—not on sport-watch water resistance. Blancpain’s product page lists the US price at $37,700 as of October 7, 2026; price and availability can change.
What the 6654 3640 55B displays
A complete calendar shows the day, date and month; this Villeret adds a moon-phase display. The dial arranges the information with day and month apertures, a central pointer date that travels around a date scale, and the moon phase at six o’clock. Hours, minutes and seconds are shown centrally. Monochrome’s review describes this layout, while Blancpain’s product material identifies the calendar and moon-phase functions.
The pointer date gives the calendar a different visual rhythm from a dial with a conventional date window: the date hand sweeps across the scale rather than appearing in a single aperture. The day and month remain in their own windows, with the moon-phase display occupying the lower part of the dial.
Blue dial, red-gold case and the exact reference
Blancpain identifies reference 6654 3640 55B as the sunburst blue-dial, red-gold version. The neighboring reference 6654 3642 55B is listed with an opaline dial, not blue. When checking a listing or pre-owned watch, compare the complete reference against the seller’s documentation and photographs rather than relying on “blue dial 6654” alone.
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- [Classic Men's Watches] The NIBOSI men's analog watch features a 1.54 inch (39 mm) dial with day-date calendar display. Stainless steel case paired with diamond bezel design effortlessly transitions from business meetings to casual settings, meeting modern men's style needs
- [Precision Quartz Movement] The NIBOSI men's wristwatch is powered by a quality quartz movement for exceptional accuracy. The men's dress watches feature long-lasting replaceable button batteries and scratch-resistant mineral crystal glass, combined with a stainless steel case, delivering enduring functionality for the modern man
- [Premium-quality Materials] This men's gold watch is crafted with a solid stainless steel case (0.43 inch thick) with a 0.75 inch width bracelet band. Push-button foldover clasp prevents accidental openings. Includes an adjustment tool that customizes a 7.09-8.66 inch fit for most wrists. Sturdy 3.7 oz weight conveys premium quality
- [100 FT Water-Resistant] The men's stainless steel watches with a 3ATM rating, which makes them withstand handwashing, rain, and splashes. Note: The men's quartz watch is not suitable for swimming, showering, or diving. This fashion watch is a versatile accessory for work, travel, or social events
- [Gifts Ideal & Warranty] Presented in high-quality packaging, it's an exquisite present for husbands, fathers, sons, or friends on anniversaries, birthdays, or holidays. Backed by a 12-month warranty and customer service. If you have any problems after receiving our watches, please don't hesitate to contact us
Blancpain introduced blue as a color variation for red-gold Villeret Quantième Complet and Ultraplate models in a 2020 announcement. That launch context applies to a dial-color variation; it does not mean every 6654 reference has a blue dial.
Case, movement and specifications
| Specification | 6654 3640 55B |
|---|---|
| Case | 40 mm diameter; 10.90 mm thick; red gold |
| Interhorn width | 22 mm |
| Caseback | Sapphire |
| Movement | Automatic Blancpain caliber 6654.4 |
| Power reserve | 72 hours |
| Frequency | 4 Hz |
| Movement details | Silicon balance spring; 28 jewels; 321 components |
| Functions | Hours, minutes, seconds, day, date, month and moon phase |
| Water resistance | 3 bar |
| Strap and clasp | Alligator leather strap; Blancpain lists folding-clasp and strap/clasp variants |
Blancpain specifies the caliber as an automatic movement with a 72-hour power reserve, 4 Hz frequency, 28 jewels, a silicon balance spring and 321 components. Those are manufacturer specifications, not independent timing or durability test results.
Rank #2
- Material: The strap of the watch is made of stainless steel.
- Specifications: Strap length: approx. 22cm/8.66Inch;Strap width: approx. 1.8cm/0.71inch;Dial size: approx. 4cm/1.57inch;Dial thickness: approx. 0.9cm/0.35inch
- This is a unique men's diamond watch that is very beautiful and suitable for any special occasion and the perfect gift for any gentleman.
- Not only luxurious but also beautiful, this full diamond watch band looks elegant on the wrist and is easy to match for any occasion.
- Please Notes: The strap can be adjusted with tools. If your wrist is relatively small and the watch is relatively large, you can take it to the watch shop and let a professional worker adjust it. If you have the tools and know how to tune it, you can tune it yourself.
The 3-bar water-resistance rating is modest. It does not make this a dive or water-sports watch; treat it as a dress watch and follow Blancpain’s care guidance for water exposure.
Calendar adjustment and day-to-day ownership
Blancpain says under-lug correctors adjust the calendar indications. Its technical document further states that the caliber’s secure design allows calendar adjustment at any time of day without damage. This is a manufacturer claim for this movement, not a rule that applies to every calendar watch. Follow the manual for the actual correction procedure and corrector locations.
Rank #3
- The date is clearly displayed in a mini window. Just throw a glance at the dial, you will get the calendar easily.
- Stainless steel watch: Classic and durable stainless steel strap with a simple one click safety folding buckle. Equipped with free strap adjustment tools, the length of men's watches can be adjusted according to the wrist size, providing a comfortable wearing experience.
- High Quality Imported quartz movement,The exquisite rhinestones adorn the dial, leading you to experience fashion trends of luxury fashion.
- If you have any questions, please contact us in time. We have first-class after-sales service, so please feel free to buy. If you want to return the goods, please contact customer service first. We will reply to you within 24 hours and provide satisfactory solutions and warranty services.
- If there are any issues with the watch you purchased, please contact us promptly. Our service: 1 * refund 2 * Free resend of replacement parts
The 22 mm interhorn width is useful when checking replacement strap dimensions, and Blancpain lists an alligator strap. That measurement alone does not establish that every aftermarket strap will fit: verify the attachment style, clasp and exact fit for the particular watch before ordering.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Price, availability and what to check before buying
Blancpain’s US product listing showed $37,700 on October 7, 2026. The brand notes that price may vary with the strap fastening and directs buyers to contact Blancpain or a point of sale for more information; availability on the page is inquiry-based. Confirm the current price, configuration and stock directly before making a purchase.
Rank #4
- Style: fashion, leisure, business, luxury, sports
- Material: High hardness mineral glass (Key scratch resistant),stainless steel case back,compressive and abrasion resistance.
- The 3 o'clock position is a calendar display, which is the calendar and the day
- Men's stainless steel watch ★ multipurpose occasions ★: suitable for indoor/outdoor activities, such as meetings, business, festivals, appointments, parties, birthdays, graduation ceremonies, dances, performances, daily sports, such as climbing, fishing, travel, Thanksgiving, Christmas, Valentine's Day, Father's Day, ideal gifts/romantic gifts
- 30m water resistance, protects your watch from splash and rain, convenient for your daily life, not suitable for swimming and sauna, etc.
For a new watch, use Blancpain’s product page and point-of-sale route. For a pre-owned example, ask for documentation that confirms the full reference and inspect the dial, case, movement service history, condition, warranty and seller’s return terms. When comparing alternatives, useful points are case metal and dial color, dimensions, calendar layout and adjustment method, reserve and movement features, water resistance, strap/clasp configuration, price, warranty and condition.
Quick Recap
Best Value
- [Classic Men's Watch] The NIBOSI men's analog watch features a 1.57-inch (40 mm) dial with day-date calendar display. Stainless steel construction and timeless design transition from business meetings to casual events, meeting modern men's style needs
- [Precision Quartz Movement] The NIBOSI men's wristwatch is powered by a quality quartz movement for exceptional accuracy. The men's dress watches feature long-lasting replaceable button batteries and scratch-resistant mineral crystal glass, combined with a stainless steel case, deliver enduring functionality for the modern man
- [Premium Luxury Materials] This men's gold watch is crafted with a solid stainless steel case (0.51-inch thick) with a 0.75-inch width bracelet. Push button foldover clasp prevents accidental openings. Includes an adjustment tool that customizes a 7.09-8.66-inch fit for most wrists. Sturdy 4 oz weight conveys premium quality
- [100 FT Water-Resistant] The men's stainless steel watches with a 3ATM rating, which makes them withstand handwashing, rain, and splashes. Note: The men's quartz watch is not suitable for swimming, showering, or diving. This fashion watch is a versatile accessory for work, travel, or social events
- [Gifts Ideal & Warranty] Presented in high-quality packaging, it's an exquisite present for husbands, fathers, sons, or friends on anniversaries, birthdays, or holidays. Backed by a 12-month warranty and customer service. If you have any problems after receiving our watches, please don't hesitate to contact us
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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