Blancpain · Villeret

Strap for Villeret Calendrier Chinois Traditionnel Red Gold / White

Takes 23 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width23 mm
Case diameter45 mm
Reference00888-3631-55B
FamilyVilleret
MovementBlancpain caliber 3638 hours, minutes | date, month, Chinese calendar | moonphase, Zodiac Indications
Year2013
CaseRed Gold

Spring bar

Swiss Standard universal spring bars

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

The Villeret 00888-3631-55B, seen from the bench

The Blancpain Villeret houses the Caliber 3638 with indications of hours, minutes, date, month, Chinese calendar, moon phases and zodiac signs. The watch has 23mm lugs and offers a complete display of astronomical complications. The movement integrates traditional calendar and Chinese calendar functions in a single mechanical architecture.

Frequently asked questions

What is the lug width of the Blancpain Villeret 00888-3631-55B?

The lug width of the Blancpain Villeret 00888-3631-55B is 23mm. This dimension deviates from standard industrial specifications and is specific to the 45mm case. It is essential to respect this measurement when selecting a strap: measure centre-to-centre of the internal lug attachments (tulle) using a digital caliper to verify compatibility.

Which strap do you recommend for the Blancpain Villeret in rose gold?

For the Villeret 00888-3631-55B in rose gold, alligator leather with vegetable tannage is the choice of election: precise geometric texture, patina that evolves towards warm tones, and guaranteed colour harmony. Equally valid alternatives include shell cordovan (exceptional durability, rapid patina towards verdigris) and vintage calf leather (understated elegance, soft grain). For colour matching, opt for deep cognac brown, intense burgundy, or polished black with coffee-coloured underside.

How do I change the strap on a Blancpain Villeret?

Strap replacement requires a dedicated tool (spring bar remover) to compress the internal spring bar of the lug and slide the old strap out of the attachments. We recommend entrusting this operation to a qualified watchmaker if you are inexperienced: the risk is scratching the case. If you proceed independently, work on a soft surface, ensure good lighting, and verify that the new strap sits perfectly in the attachment points.

Can I use an aftermarket strap compatible with my 00888-3631-55B?

Yes, but with precise precautions. Your timepiece requires a strap with a 23mm lug width specifically: do not compromise on this dimension. An aftermarket strap of artisanal quality (vegetable-tanned leather, solid spring bars, double stitching) maintains the aesthetic integrity of your Villeret. Avoid cheap industrial versions with synthetic leather and artificial finishes: your watch deserves a strap at its level.

How long does a quality leather strap last on a Blancpain Villeret?

A handcrafted strap in vegetable-tanned leather (alligator, shell cordovan, calf) lasts between 3 and 5 years with moderate daily use, provided you keep it dry (avoid showers and direct sweat). The leather patinas naturally, increasing in character. When the strap shows structural wear (loosened stitching, deep fissures on the mid-section) it is time to replace it. A Casati Milano strap comes with an 18-month warranty on 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.

Request an appointment →

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