Strap for Villeret Ultraplate Automatique 40mm Red Gold / Opalin

The lug width of the Blancpain Villeret 6651-3642-55B is 22 millimetres. This is the internal distance between the two case lugs. It is essential to verify this dimension before ordering a compatible strap, as a strap with incorrect width would require forced fitting and could potentially damage the watch.

For the Villeret 6651-3642-55B, we recommend a Mississippi alligator in havana brown or dark brown tones: the colour contrast with the rose gold 18-carat case is naturally elegant. Alternatively, a vegetable-tanned calf leather in black or dark brown offers greater formal sophistication. The choice depends on intended use: daily wear or predominantly formal occasions.

Strap change is performed by withdrawing the spring bars using a dedicated tool: position the 6651-3642-55B on a soft surface, locate the lug pins, gently push the spring bar with the tool to remove it from the first side, then the other. The new strap is inserted by aligning the pins into the lug holes. We recommend having the operation performed by a certified watchmaker to avoid scratches or damage.

Yes, any strap with a 22-millimetre lug width is mechanically compatible with the Villeret 6651-3642-55B. However, aesthetic compatibility depends on construction quality and choice of leather and colour. Artisanal straps offer superior quality compared to industrial products, ensuring solidity and natural leather ageing over time.

A quality leather strap, used daily with normal care (avoiding excessive moisture and direct heat sources), has a lifespan of 3-5 years before requiring replacement. Vegetable-tanned calf develops characteristic patina after 6-12 months, whilst alligator maintains greater rigidity over time. With preventive maintenance (occasional cleaning and application of specific creams), it is possible to extend strap life to 7 years.