Strap for Villeret Réveil GMT Red Gold / Opalin

The lug width of the Blancpain Villeret 6640-3642-55B measures 22mm. This dimension is measured from the innermost point of the case attachment to the strap. Always verify with a digital calliper that your replacement strap conforms exactly to this measurement, as even a minor deviation will cause incompatibility with the strap lugs.

For a Villeret in 18-carat rose gold, the ideal strap is crafted from Mississippi alligator with vegetable tanning, preferably in deep black or cognac. This material develops a patina over time that mirrors the natural ageing of rose gold, creating an unequalled aesthetic and tactile harmony. As an elegant alternative, vegetable-tanned calf leather in black remains a credible and versatile choice.

The strap of the Villeret 6640-3642-55B is attached via spring bars positioned inside the lugs. To remove the strap, use a spring bar removal tool (Casati Milano can assist), compress the spring and slide it outward. Install the new strap by reversing the process: insert a spring bar into the new strap, align the holes, compress the spring, and secure firmly. Casati Milano offers full assistance with 18-month warranty coverage.

Yes, any aftermarket strap with a 22mm lug width is compatible with the Villeret 6640-3642-55B, provided the spring bars are correctly dimensioned and the strap is manufactured from materials of sufficient quality to honour the technical and aesthetic value of the watch. Milano Straps offers a dedicated collection of artisanal straps for this lug width, crafted in Italy with noble hides and sartorial finishes.

The lifespan of a leather strap depends on usage intensity, climate conditions, and tanning quality. An alligator or calf strap with vegetable tanning, worn regularly, has a useful life of 3-5 years before surface fibres require regeneration. Casati Milano straps are engineered for longevity beyond this period thanks to superior leathercraft and carry an 18-month warranty against manufacturing defects. Periodic maintenance—gentle cleaning and natural air-drying—significantly extends durability.