Omega · De Ville
Strap for De Ville Prestige Co-Axial 39.5 Stainless Steel / Orbis
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 424.13.40.20.03.003 (aka: 42413402003003)
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
The De Ville 424.13.40.20.03.003 (aka: 42413402003003), seen from the bench
Frequently asked questions
What is the exact lug width of the Omega De Ville 424.13.40.20.03.003?
The lug width of the De Ville 424.13.40.20.03.003 is 20 mm. This is the internal distance between the two pins that connect the case to the strap. It is essential to measure it correctly using a digital caliper before purchasing a compatible strap.
What is the best strap for the Omega De Ville 424.13.40.20.03.003?
Dark brown alligator or Mocha represents the premier choice for this model. It creates a harmonious pairing with the blue dial and offers durability spanning multiple years. Alternatively, vegetable-tanned calf leather develops a natural patina that reflects the aging of the stainless steel case.
How do I change the strap on the De Ville 424.13.40.20.03.003?
Changing the strap on the De Ville requires two tools: a spring bar tool and a small pair of tweezers. Position the spring bar tool in the groove of the pin, apply downward pressure to compress the internal spring, then slide the pin out of the case. The reverse process enables installation of the new strap. If you prefer, the Casati Milano atelier offers a fitting service by appointment.
Can I use an aftermarket strap from other brands on my De Ville 424.13.40.20.03.003?
Only if the strap strictly complies with the 20 mm lug width specification. Most standard straps are not compatible with this specific dimension. We recommend custom-made straps from specialized suppliers such as milanostraps.it, which guarantee perfect fit without any compromises in construction.
How long does a leather strap last on the De Ville 424.13.40.20.03.003?
An alligator or shell cordovan strap typically lasts 4-6 years with daily wear, thanks to the durability of these leathers. Vegetable-tanned calf has a slightly shorter lifespan (3-4 years), but develops a fascinating patina over time. Longevity depends on exposure to moisture, direct sunlight, and frequency of use. Casati Milano straps include an 18-month warranty.
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

