Blancpain · Villeret

Strap for Villeret Ultraplate Power Reserve Date Red Gold / Black

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter40 mm
Reference6606-3630-55B
FamilyVilleret
MovementBlancpain caliber 11C5 Hours, Minutes, Small Seconds | Date | Power Reserve Indicator
CaseRed Gold

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Villeret 6606-3630-55B

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Villeret 6606-3630-55B, seen from the bench

The Blancpain Villeret 6606-3630-55B is a classic contemporary timepiece in 18k red gold, representing three centuries of expertise from the Le Brassus manufacture founded in 1735. The 40.00 mm case features a polished bezel, curved lugs, and a Clous de Paris caseback. The automatic caliber 11C5 movement powers the silvered guilloché dial with hours, minutes, small seconds, date, and power reserve indicator. The 22 mm lug width positions this dress watch in the full-size category, requiring straps of corresponding quality.

Frequently asked questions

What is the lug width of the Blancpain Villeret 6606-3630-55B?

The Blancpain Villeret 6606-3630-55B has a lug width of 22mm. This measurement is taken with a digital calliper across the inner distance between the two lugs at the strap attachment point — not the case diameter. A 22mm strap is required for a correct fit with no lateral play.

What is the best strap for the Blancpain Villeret 6606-3630-55B in red gold?

For a formal dress watch in 18-carat red gold such as the Villeret 6606-3630-55B, a Mississippi alligator strap with a regular grain is the most aesthetically coherent choice. Recommended shades include Havana brown, bordeaux and cognac. Alternatively, vegetable-tanned Italian calf leather develops an authentic patina over time and offers genuine character. Both options are available in 22mm at milanostraps.it.

How do you change the strap on a Blancpain Villeret 6606-3630-55B?

The strap on the Blancpain Villeret 6606-3630-55B is replaced by removing the spring bars using a dedicated forked spring bar tool. It is advisable to rest the watch on a soft cloth to avoid scratching the red gold case. If in doubt, entrust the operation to a watchmaker or the Casati Milano atelier service.

Are there aftermarket straps compatible with the Blancpain Villeret 6606-3630-55B?

Yes. Any strap with a 22mm attachment width and standard spring bars is technically compatible with the Blancpain Villeret 6606-3630-55B. Milano Straps offers a curated selection of handcrafted 22mm straps in alligator, calf leather and vegetable-tanned leather, produced in Italy with selected materials and hand-stitched finishing, well suited to the formal character of this reference.

How long does a leather strap last on a Blancpain Villeret 6606-3630-55B?

Longevity depends on the leather type, frequency of use and exposure to perspiration and moisture. A quality alligator strap, properly cared for and stored away from heat sources, retains its structural and aesthetic integrity for 2–4 years. Vegetable-tanned calf straps, while more sensitive to moisture, develop a patina that enhances their appearance over time. Milano Straps guarantees its straps for 18 months against manufacturing defects.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only