Strap for De Ville Co-Axial 37.5 Yellow Gold / Skeleton

The lug width of the De Ville 5912.30.22 is 19mm. This measurement requires a custom-built strap, not a standard catalogue option. To verify the measurement, insert a digital calliper into the lateral grooves of the case near the lugs: the result must be 19.00mm ± 0.3mm.

Dark brown or hazelnut alligator is the natural choice for aesthetic coherence and durability. Alternatively, shell cordovan in horse rump leather ensures excellent structural resistance, or vegetable-tanned calf leather in mahogany or burgundy for a more versatile and less formal impression.

The 5912.30.22 features fixed lugs (not interchangeable except in a workshop). To change the strap, you must remove the watch and use specific tools: a springbar tool or a custom tool that allows you to compress the internal springs without scratching the case. If you are not experienced, entrust the work to a certified watchmaker or contact Casati Milano for assistance.

Artisanal straps in alligator, shell cordovan or vegetable-tanned calf leather, built specifically for 19mm lug width, guarantee compatibility and longevity. Avoid bulky sports chronograph straps: the De Ville requires a contained cross-section (thickness 3.5–4.5mm) and warm colours that harmonize with the yellow gold case.

Durability depends on leather quality, daily use and maintenance. High-end alligator and shell cordovan resist 4–6 years with frequent use; vegetable-tanned calf leather 3–5 years. Stitching and the buckle may require maintenance every 18–24 months. Casati Milano straps come with an 18-month warranty and can be repaired at the atelier.