Strap for Patrimony Self-Winding 36.5 White Gold - Diamond / Blue

The Vacheron Constantin Patrimony 4115U/000G-B908 features a lug width of 16 mm. This measurement must be taken between the inner faces of the lugs at the point where the strap meets the case, ideally using a digital calliper. This specification is not interchangeable with adjacent sizes such as 17 or 18 mm.

Given the white gold case and the formal character of the Patrimony, a vegetable-tanned Louisiana alligator strap is the most coherent choice: refined grain, natural patina over time and supple texture harmonise perfectly with the minimalist design of this reference. Shell cordovan is an equally valid alternative for those who prefer an even smoother, more restrained surface. A white gold deployant clasp completes the pairing with maximum rigour.

The strap is removed using a fine-tipped springbar tool inserted into the lug hole to compress the springbar. Given the delicacy of the 18-carat white gold case, it is strongly advisable to work on a soft watchmaker's pad and to protect all case surfaces during the operation. If in doubt, entrust the task to a qualified watchmaker or the Casati Milano atelier.

Yes. Any strap with a 16 mm lug width and standard springbar is technically compatible. Milanostraps.it offers a curated selection of handcrafted 16 mm straps in alligator, calf leather and shell cordovan, available both ready-to-ship and bespoke, with customisable finishes and buckles. Always verify that the springbar dimensions are appropriate for the Patrimony's lug geometry.

The lifespan of a leather strap depends on the quality of the tanning process, frequency of use and maintenance. A high-quality vegetable-tanned alligator strap, rotated regularly and kept away from prolonged exposure to water and perspiration, will retain its structural integrity and aesthetic quality for three to five years or more. Casati Milano straps are covered by an 18-month warranty against manufacturing defects.