Blancpain · Villeret
Strap for Villeret Quantieme Complet 8 Jours Red Gold / Enamel
Takes 23 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
The Villeret 6639-3631-55B, seen from the bench
Frequently asked questions
What is the lug width of the Blancpain Villeret 6639-3631-55B?
The lug width of the Blancpain Villeret 6639-3631-55B is precisely 23mm (measured inside to inside). This dimension is critical for compatibility: straps with different widths will not fit correctly onto the case lugs and will create binding or excessive play. Always verify the lug width specification when purchasing an aftermarket strap.
What strap material is best suited for the Blancpain Villeret in rose gold?
Vegetable-tanned alligator is the classical choice for this reference: its natural grain aligns with the minimalist aesthetic of the dial, whilst dark colours (brown, navy blue, black) amplify the chromatic contrast with rose gold. For those seeking decade-spanning durability and evolved patina, horse Shell Cordovan is the supreme option. High-quality calf leather offers tactile sensitivity and ages naturally in synchrony with the case's Red Gold, developing complementary undertones.
How do I change the strap on the Blancpain Villeret 6639-3631-55B?
Changing the strap requires a spring bar tool to compress the pins and remove the old strap. Position the watch on a stable surface, insert the tool blade under the spring bar lug, compress gently, and extract the strap. Repeat on the opposite side. When installing the new strap, ensure the spring bars lock securely on both sides. If uncertain, consult a specialist watchmaker: damage to spring bars is costly to remedy.
Can I use an aftermarket strap from another brand on the Blancpain Villeret 6639-3631-55B?
Yes, provided the lug width is exactly 23mm and the strap thickness is compatible (typically 4.0–4.5mm for watches of this case diameter). The Villeret is not bound to proprietary straps. However, sourcing from specialist artisans who guarantee precise measurements and certified craftsmanship is advisable, as an incorrectly proportioned strap compromises the aesthetic balance that Blancpain has calibrated with precision.
What is the typical lifespan of a leather strap on the Blancpain Villeret?
A quality alligator strap, with moderate daily wear, typically lasts 3–5 years before showing visible signs of ageing. Horse Shell Cordovan, due to superior molecular density, achieves 7–10 years or longer if properly maintained (avoid prolonged moisture exposure; apply specialist cream occasionally). Quality calf leather falls between 4–6 years. Lifespan depends on usage frequency, exposure to water and perspiration, and preventive care. Casati Milano offers an 18-month warranty against manufacturing defects; natural wear falls outside this scope.
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
