Omega · De Ville
Strap for De Ville Prestige Co-Axial 39.5 Stainless Steel / Red Gold / Silver Sunburst / Bracelet
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the De Ville 424.20.40.20.02.007 (aka: 42420402002007)
Selected for the 20 mm lug width · workshop selection
Black Alligator Strap with Light Blue Edges€149
Red Alligator Strap Water Resistant€195
Green Rubberized Alligator Strap with Ecru Tribal Stitching€149
Hammered Calfskin Strap Light Blue€98
Vintage Olive Green Calf Leather Watch Strap€80
Frequently asked questions
What is the lug width of the Omega De Ville 424.20.40.20.02.007?
The <a href="/pages/termine-glossario/misura-ansa">lug width</a> is 20mm. This specification is essential for choosing a compatible strap. Always verify by measuring the distance between the lugs on the case extremities, perpendicular to the dial.
What is the best strap for a bimetallic Omega De Ville in red gold and steel?
To harmonize with the bimetallic color interplay, we recommend dark brown <a href="/pages/termine-glossario/alligatore">alligator</a> with natural patina, or saddlery-embossed calf leather in taupe or beige tones. These materials do not compete chromatically; instead, they complement both metals of the case.
How do you change the strap on the De Ville 424.20.40.20.02.007?
You need two tools: a spring bar tool (or spreader) to lift the lugs, and a stable work surface. Position the watch facing you, insert the tool from below into the lug, gently lift the pin until it releases from the slot, then remove the old strap. Repeat on the opposite side. Insert the new strap by aligning one pin first, then compress the other pin into the slot until it clicks into place.
Can I use an aftermarket strap on a luxury Omega De Ville?
Yes, provided it is handcrafted and made from <a href="/pages/termine-glossario/concia-vegetale">vegetable tanning</a> or <a href="/pages/termine-glossario/shell-cordovan">shell cordovan</a>. A high-quality strap does not damage the watch; in fact, it often enhances the aesthetic experience. On milanostraps.it you will find technical selections for 20mm lug width, or Casati Milano creates bespoke models in their atelier.
How long does a leather strap last on an Omega De Ville?
Durability depends on frequency of use, climate, and leather quality. A vegetable-tanned <a href="/pages/termine-glossario/alligatore">alligator</a> strap well maintained lasts 3–5 years with daily wear. Shell cordovan can reach 7–10 years. The patina that develops over time is desirable and characteristic. Casati Milano offers an 18-month warranty on every strap made.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only

