Omega · De Ville
Strap for De Ville Prestige Chronograph Stainless Steel / Silver
Takes 18 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 4840.21.00
Selected for the 18 mm lug width
Hammered Calfskin Strap Light Blue€98
Vintage Brown Calfskin Strap — Natural Patina€98
Hammered Pink Strap with Ecru Stitching€98
Hammered Yellow Strap with Ecru Stitching€98
Grey Hammered Leather Strap with Ecru Stitching€98
Swift Red Leather Strap€120
Frequently asked questions
What is the lug width of the Omega De Ville 4840.21.00?
The Omega De Ville 4840.21.00 has a lug width of 18 millimetres. This measurement is standard for classic dress watches and ensures correct optical proportions between the 36.10mm case and the strap. Verify the measurement with a calliper on your internal lugs to exclude construction variants between different production years.
Which strap is best suited for the De Ville 4840.21.00?
The ideal strap depends on frequency of use and aesthetic preferences. For maximum formal elegance, we recommend medium brown or black alligator. For everyday versatility, a vegetable-tanned calf leather in cognac or hazelnut pairs perfectly with the silver dial. For sports use and practicality, anthracite grey rubber or navy blue NATO offer comfort and restrained understatement. All straps must respect the 18mm lug width measurement.
How do you change the strap on a watch with a non-integrated lug?
In the case of the De Ville 4840.21.00 with non-integrated lugs, the change is straightforward: position the watch on a soft surface, insert a thin tool (strap removal tool or craft knife) into the groove of the spring bar located beneath the lug. Press gently downward to release the spring and extract the pin. Repeat on the other side. The operation requires precision to avoid scratching the case. If uncertain, consult an authorised Omega service centre.
Can I use an aftermarket non-original Omega strap for the De Ville 4840.21.00?
Yes, absolutely. Quality aftermarket artisanal straps (alligator, vegetable-tanned calf, shell cordovan) are fully compatible with the Omega De Ville 4840.21.00 provided they respect the 18mm lug width. In fact, a custom-made strap from a specialist craftsman such as Casati Milano allows customisation in leather, colour and stitch thread that an original strap does not permit, while keeping the watch warranty intact.
What is the average lifespan of a leather strap for a watch like the De Ville?
The lifespan depends on the material and daily use. A quality artisanal alligator strap with vegetable tanning lasts an average of 3-5 years with daily wear. Calf leather, being more porous, may require replacement every 2-3 years if subjected to constant stress. Rubber is practically unlimited, but yellows over time when exposed to sunlight. To extend the life of the strap, alternate it with other options (summer/winter) and occasionally maintain it with creams specifically designed for fine leathers.
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

