Strap for De Ville Prestige Co-Axial 39.5 Stainless Steel / Silver Sunburst

The lug width of the Omega De Ville 424.13.40.20.02.007 is exactly 20mm. This measurement represents the distance between the lugs of the case and is essential for strap compatibility. To verify it, remove the original strap and measure with a digital caliper between the internal walls of the lugs, or consult Omega's official specifications directly. Any strap purchased must have a 20mm lug width for proper fit and without misalignment.

The best strap depends on the context of use and personal taste. For formal occasions, we recommend black Mississippi alligator with contrasting silk stitching—the reptile grain maintains tactile elegance without specular reflections. For daily use, horse shell cordovan offers constructive density and natural luster that develops over time. English aniline calf is the versatile compromise, ideal for those wanting visible aging and natural patina. All these materials are available in 20mm lug width from milanostraps.it or from the Casati Milano atelier for completely customized solutions.

Strap change is a simple operation that requires a small screwdriver (diameter 1.5-2mm). Locate the two spring bars on the sides of the lug: one spring has a small access hole. Insert the screwdriver into the hole, push gently inward to depressurize the spring, and simultaneously pull the strap downward. Repeat on the other side. To install the new strap, align the strap ends with the lugs, insert one end of the spring into its housing first, then press the other end by pushing gently until you hear an audible click. If unsure, trust a local watchmaker: the operation takes 5 minutes and is often free at specialized shops.

Yes, any strap with a 20mm lug width is compatible with the De Ville 424.13.40.20.02.007, regardless of brand. Compatibility depends exclusively on lug width, not on brand or historical case model. However, we recommend choosing materials that respect the elegant vocation of the De Ville: fine leathers (alligator, cordovan, calf) age better and synchronize aesthetically with the steel and silvered dial. Avoid rubber or fabric straps if you wish to maintain design coherence. The Casati Milano atelier manufactures bespoke 20mm straps specifically for Omega models, guaranteeing perfect dimensional compatibility and construction quality.

The lifespan of a leather strap depends on the material, use, and maintenance. Shell cordovan, if protected from excessive moisture, lasts 5-7 years with daily wear before requiring replacement. Alligator and calf have similar lifespan, 4-6 years, depending on exposure to sun and humidity. Less dense leathers (common calf) may begin showing significant wear after 3 years of daily wear. To extend life, avoid baths, prolonged downpours, and excessive sweating. Apply leather balm every 6-8 months to maintain elasticity. A well-maintained strap ages with patina and character—it is not a defect, it is aesthetic enrichment. If replacement is needed, Casati Milano manufactures custom replacements maintaining stylistic coherence with the original strap.