Strap for De Ville Prestige Co-Axial 32.7 Stainless Steel / Vintage Grey Silk

The lug width of the 424.13.33.20.56.002 is precisely 16mm. This measurement refers to the internal distance between the two lugs of the case where the strap attaches. It is essential to measure this accurately using a digital calliper on the inner shoulders of the lugs to ensure absolute strap compatibility. Even a deviation of a few tenths of a millimetre causes undesired movement and unstable strap seating.

For the 424.13.33.20.56.002, we recommend alligator in vegetable tannage (dark brown or black), shell cordovan in natural cognac tone, or smooth calf in pearl grey. Alligator offers characteristic grain and formal elegance. Shell cordovan provides rigid structure and captivating natural ageing. Smooth calf ensures lightness and silk-like finish. Avoid rubber and textiles that would compromise the delicate case proportions.

Changing the strap on the 424.13.33.20.56.002 is straightforward: use a spring bar tool to push inward the small pin that holds the strap beneath each lug. While keeping the pin pressed, slide the old strap out of the lug, then insert the new strap by aligning the terminals with the tension spring and release. Proceed with care: the case lugs are precision-engineered and do not tolerate force.

Yes, a quality aftermarket strap is completely safe and compatible provided it is dimensioned precisely to 16mm lug width. A bespoke strap from Milano Straps or Casati Milano, crafted to technical specifications, offers aesthetic and constructive advantages superior to original Omega straps. The quality of leather and construction can be exceptional with specialised artisans, maintaining warranty and functionality without any risk.

A leather strap in vegetable tannage (alligator or shell cordovan) averages 3-5 years with daily use, provided it is kept dry and protected from excessive perspiration. Lifespan increases with occasional use or in dry climates. The leather naturally wears on flex points and at the buckle, generating desirable patina. Casati Milano offers buckle replacement and length adjustments, thereby extending strap life. Complete renewals are economically sustainable thanks to bespoke craftsmanship.