Strap for Villeret Répétition Minutes Automatique Red Gold

The lug width of the Blancpain Villeret 6635-3642-55B is 21 millimetres. This dimension, measured between the inner shoulders of both lugs, represents a precision watchmaking standard that permits the use of specific aftermarket straps. To measure accurately, position a digital calliper between the lugs whilst avoiding the case thickness.

For the Villeret 6635-3642-55B, alligator in cognac or dark brown tones is recommended, as it complements the rose gold reflections without competing visually. Vegetable-tanned leather represents a noble alternative that develops patina over time. Ebony vitello emphasises formal austerity, whilst shell cordovan satisfies purists seeking dense, durable leather. Each choice depends on context of use and personal aesthetic preference.

Changing the strap requires the use of a spring bar tool specifically designed for luxury watches. Position the tool in the lateral spaces of the lug and gently press to compress the internal spring; once released, extract the pin and remove the old strap. Insert the new strap, ensuring that the spring bar retracts fully into the lugs. For watches of Villeret 6635-3642-55B calibre, we recommend entrusting the operation to an authorised service centre or specialists such as Casati Milano.

Yes, it is possible to use aftermarket straps compatible with 21mm lug width. Straps crafted by artisans specialising in noble leather—alligator, vitello, shell cordovan—guarantee mechanical compatibility and aesthetic quality comparable to originals. It is essential to verify that the lug width conforms to 21mm specifications and that the fastening system (buckle or deployante) is proportionate to the rose gold case. Casati Milano offers bespoke solutions tailored for this reference.

The lifespan of a leather strap depends on material quality, tanning method and intensity of use. Alligator or shell cordovan processed with vegetable tanning typically last 3–5 years in daily wear; vitello tends to wear more rapidly (2–3 years). Determining factors include humidity exposure, frequency of use, perspiration and preventive care (drying after water contact, storage in dry environments). A strap from Casati Milano, produced with noble materials, evolves aesthetically over time, developing patina without structural compromise.