Strap for Villeret Ultraplate Automatique 40mm Red Gold / Black

The lug width of the Blancpain Villeret 6651-3630-55B is 22mm. This measurement is standard for the model and represents the ideal balance between case structural robustness and ergonomic proportions. The measurement must be taken internally between the case lugs at the strap seating point. Any compatible strap with a 22mm lug width will fit perfectly, provided the curvature of the lug is calibrated to Blancpain geometry.

For the Villeret 6651-3630-55B, Mississippi alligator in Havana tone is the historical choice: the natural grain and texture create elegant contrast with rose gold, whilst the softness ensures wrist comfort. Alternatively, French calf (Hermès, Tanneries d'Alençon) offers formal sobriety with uniform texture. Japanese shell cordovan represents the most durable solution for daily use, developing extraordinary patina character. Natural rubber is suitable for sporting contexts, whilst NATO fabric is a reversible modern alternative.

Strap replacement is a straightforward operation: you require two tools — a spring bar remover (or blunt pointed pen) and a flat surface. Position the watch with the strap side facing upward, gently insert the spring bar remover tip into the lateral hole of the case lug to release the strap, pull the strap downward. Repeat on the opposite side. The old strap will now disengage. To fit the new strap, align the strap ends with the lateral holes and push until you hear a click of secure engagement. Verify that the strap is perfectly seated within the rotation pins.

Yes, any artisanal strap with an internal 22mm lug width is compatible with the 6651-3630-55B, provided the lug curvature is designed for classic 40mm cases. Milano Straps are manufactured to precise tolerances and tested on Blancpain Villeret geometries: they guarantee perfect seating without lateral play or anomalous tension. The superior construction quality and choice of noble materials (alligator, calf, shell cordovan, natural rubber) ensure aesthetic and functional pairing exceeding OEM straps.

Longevity depends on material, construction quality and use intensity. A high-quality artisanal alligator strap with vegetable tanning resists 3-5 years of daily wear before deterioration becomes visible; however, the leather continues ageing and developing patina, which is not deterioration but aesthetic evolution. French calf has similar longevity, with the advantage of more uniform texture over time. Japanese shell cordovan is a monolithic material almost impermeable: it resists 5-8 years of intensive use without structural failure. Vulcanised natural rubber has greater longevity (up to 10 years) as it is not subject to ageing like leather. All Milano Straps include a 18-month warranty against production defects.