Strap for Villeret Ultraplate Automatique 40mm Stainless Steel / White

The lug width of the Blancpain Villeret 6651-1127-55B is 22 millimetres. This measurement corresponds to the external distance between the articulation pins on the case. You can verify this dimension by measuring directly between the two pins, or by consulting the original booklet or an authorised Blancpain retailer.

For the Villeret 6651-1127-55B in stainless steel, Mississippi alligator represents the classical reference: the regular grain texture and natural softness of the leather create aesthetic continuity with the case. Excellent alternatives are vegetable-tanned calf—available in a richer colour palette—and shell cordovan for those seeking patina evolution over time. Your choice depends on usage context: alligator for formal wear, calf for versatility, shell cordovan for distinctive character.

To change the strap on your Villeret 6651-1127-55B, you must remove the articulation pins (spring bars) from the case lugs. Use a dedicated spring bar tool to gently press the pins inward, releasing the previous strap. Align the new strap's holes with the case lugs and reinsert the pins, ensuring they are securely positioned. To preserve the case and strap, we recommend entrusting this operation to an experienced watchmaker or the Casati Milano service.

Yes, you may use aftermarket straps that are compatible provided they respect the 22-millimetre lug width and are constructed with rigorous materials and techniques. Artisanal straps in alligator, calf, shell cordovan and certified natural rubber are perfectly compatible. It is essential to verify that the articulation pins are inserted and secured correctly to ensure the strap's safety and comfort on your wrist.

A leather strap's durability depends on the material, frequency of wear and maintenance. Premium-quality vegetable-tanned alligator can last 5–8 years if worn daily with ordinary care—protection from excessive moisture, gentle drying, light cleaning. Shell cordovan, owing to its structural density, can reach 8–10 years. Vegetable-tanned calf presents durability similar to alligator. The warranty provided by Casati Milano covers 18 months against manufacturing defects; overall durability remains influenced by climate, body perspiration and preventive maintenance.