Strap for Villeret Manuelle Piece Unique Grand Feu Couple in Field

The lug width of the Blancpain Villeret 6615C-3631-55B - 4 is 23 millimetres. This measurement is a specific design criterion for the model, ensuring ideal proportions between the 45mm case and the strap. It is measured perpendicular to the case with a calliper between the internal lug shoulders.

For the Villeret 6615C-3631-55B - 4 in rose gold, the most appropriate materials are crocodilian alligator (formal, timeless choice), vegetable-tanned calf leather (natural patina development over time), and premium shell cordovan (elegant tactile contrast with the case). The ideal colour choice is dark brown or tobacco, which dialogues warmly with rose gold without competing visually.

Changing the strap requires a dedicated spring bar tool. Position the watch on a soft surface; insert the tool into the spring opening, gently press to release the pin, and simultaneously withdraw the exhausted strap. Reverse the procedure to install the new 23mm strap. The operation should be performed with precision to avoid scratching the rose gold lugs.

Yes, provided the aftermarket strap is constructed to the 23mm lug width specification. It is essential to verify manufacturing tolerance (23mm ±0.2mm maximum). Casati Milano artisanal straps are bespoke-manufactured to this specification and include 18-month guarantee on production defects. Avoid approximations: an undersized strap creates air gaps; an oversized strap stresses the structure.

The lifespan depends on daily wear and storage conditions. A premium vegetable-tanned strap, worn 5-7 days weekly, maintains structural integrity for 3-4 years. Prolonged exposure to sunlight, direct moisture and intense perspiration accelerate ageing. Regular replacement (every 2-3 years for heavy use) preserves overall aesthetics. Technical rubber straps have similar duration but no colour development compared to natural leather.