Omega · De Ville
Strap for De Ville Co-Axial 41 Stainless Steel / Black / 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 431.10.41.21.01.001 (aka: 43110412101001)
Selected for the 20 mm lug width · workshop selection
Black Alligator Strap with Light Blue Edges€210
Black Alligator Strap with White Edges€210
Millenium Cognac Alligator Strap€270
Matte Blue Alligator Strap€270
Green Rubberized Alligator Strap with Ecru Tribal Stitching€185
Frequently asked questions
What is the lug width of the Omega De Ville 431.10.41.21.01.001?
The lug width of the De Ville 431.10.41.21.01.001 is exactly 20 millimeters. This dimension is determined by the case geometry and represents the distance between the attachment pins located on the sides of the case. It is essential to respect this measurement to maintain the harmonious proportions of the design.
What is the best material for a replacement strap on the De Ville 431.10.41.21.01.001?
Mississippi alligator with regular grain represents the most traditional and recommended choice: its natural texture pairs perfectly with the stainless steel case. However, Italian calf leather (in burgundy, anilina black, or dark blue tones) offers a contemporary alternative. For those preferring evolutionary character, shell cordovan develops an extraordinary natural patina over time.
How do you change the strap on an Omega De Ville 431.10.41.21.01.001?
The strap is replaced by removing the attachment pins (spring bars) located inside the lugs. Using a specialized tool (spring bar tool), apply gentle pressure to release the pin and extract it. Once the old strap is removed, the new 20mm strap is inserted into the lug holes, ensuring the pins lock correctly. It is advisable to have assistance from a professional at an authorized atelier.
Is an artisanal quality aftermarket strap compatible with the De Ville 431.10.41.21.01.001?
Yes, absolutely. Any strap with a 20mm lug width is mechanically compatible. However, it is essential that the aftermarket strap is made with materials and artisanal workmanship of excellence to maintain the aesthetic heritage of the model. Fine leathers (alligator, calf, shell cordovan), precise stitching, and refined finishes guarantee visual harmony with the stainless steel case.
How long does a natural leather strap last on a watch like the De Ville?
The longevity of a leather strap depends on the material and usage. Alligator and Italian calf, if subjected to ordinary maintenance (protection from moisture, moderate sun exposure), maintain structural integrity for 3-5 years with daily use. Shell cordovan, thanks to its denser fiber, can reach 5-7 years. Vegetable tanning, being more robust, frequently exceeds 7 years. A professional warranty (such as the one offered by Casati Milano: 18 months) covers manufacturing defects, not natural wear.
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

