Strap for Villeret Quantieme Perpetuel 8 Jours Red Gold / Enamel

The lug width of the Blancpain Villeret 6659-3631-55B is 23mm, an unconventional measurement that reflects the carefully proportioned 42mm red gold case. Measure the internal space between the lugs at their extremity to verify compatibility: it must be exactly 23mm.

For the Villeret in 5N red gold, alligator leather (with regular grain and evolving patina) and vegetable-tanned calf in cognac or dark brown tones are ideal. These materials respect the classic aesthetic without competing chromatically with the case. Alternatively, an FKM rubber deployante permits daily versatility.

Obtain a spring bar tool (a small watchmaking instrument). Position the watch with the lugs facing you, insert the flat end of the tool into the hole beside the lug and press gently to release the internal spring. Remove the old strap, align the new strap's spring with the hole and press until it clicks. Repeat on the opposite lug.

Yes, provided the lug width is precisely 23mm. Custom-made straps in alligator, calf, crocodile and technical materials are available. Always verify compatibility with reference 6659-3631-55B with the supplier. Casati Milano crafts bespoke straps with an 18-month warranty against manufacturing defects.

A quality alligator or calf strap on a watch worn regularly (3-4 days per week) has an average lifespan of 3-5 years before requiring replacement. Longevity depends on sun exposure, humidity and frequency of wear. Casati Milano straps include an 18-month warranty against manufacturing defects.