Strap for De Ville Prestige Co-Axial 39.5 Power Reserve Stainless Steel / Blue Sunburst

The Omega De Ville 424.13.40.21.03.003 has a lug width of 20 mm. This measurement represents the distance between the inner terminals of the case and determines compatibility with straps. It is essential to measure correctly by positioning a ruler between the two strap attachment points on the case.

For this model we recommend black alligator for formal elegance, brown calf for everyday versatility, or shell cordovan for those seeking tactile opulence. The choice depends on use: alligator with vegetable tanning enhances the rifle grey dial, while calf develops a natural patina over time. NATO remains a contemporary option for those desiring refined casualness.

Use a spring bar tool to gently push the internal springs that support the terminals. Always work on a soft surface to avoid scratches. Position the new strap by aligning the upper terminal, then snap the lower spring into place. If you prefer a risk-free experience, Casati Milano offers personalized strap changing service.

Any strap with a 20 mm lug width is compatible. On milanostraps.it you will find a collection of artisanal 20mm straps ready to ship, crafted in leather, alligator, shell cordovan and technical materials. All are customizable in length, initials and stitching thread.

A quality leather strap (alligator, calf, shell cordovan) typically lasts 3-5 years with daily wear, depending on climate, frequency of use and maintenance. Natural wear generates an aesthetic patina appreciated by collectors. Casati Milano guarantees 18 months on their artisanal straps, with the possibility of regeneration through reconditioning.