Omega · De Ville

Strap for De Ville Master Chronometer Stainless Steel - Yellow Gold / Silver / Bracelet

Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width19 mm
Case diameter40 mm
Reference434.20.40.20.02.002 (aka: 43420402002002)
FamilyDe Ville
MovementOmega caliber 8800 hours, minutes, seconds | date | chronometer, co-Axial escapement
Year2022
CaseYellow Gold, Stainless Steel

Recommended spring bar

Spring bars Omega Speedmaster Seamaster 19mm

Technical match for lug width and diameter · lug 19 mm · Ø 1.8 mm

All Omega spring barsOpen →

Straps for the De Ville 434.20.40.20.02.002 (aka: 43420402002002)

Selected for the 19 mm lug width

All 19 mm straps →

The De Ville 434.20.40.20.02.002 (aka: 43420402002002), seen from the bench

The Omega De Ville 434.20.40.20.02.002 is a modern dress watch featuring a 40mm two-tone case combining 18k yellow gold and stainless steel 316L. It houses the Omega 8800 Co-Axial movement certified as a Master Chronometer, ensuring precision and reliability. The dial presents applied indices and Dauphine hands for clear readability, while the smooth bezel emphasizes the proportional design. This model requires a 19mm lug width strap to ensure proper fit and alignment with the case lugs.

Frequently asked questions

What is the lug width of the Omega De Ville 434.20.40.20.02.002?

The lug width of the De Ville 434.20.40.20.02.002 is 19 millimetres. This dimension represents the internal distance between the two metal lugs of the case and must match exactly with your chosen strap to ensure proper fit without play or tension. Only straps specifically manufactured with 19mm width ensure precise alignment between the case lugs and the strap passants.

What is the best strap for the Omega De Ville 434.20.40.20.02.002?

The best strap depends on use and aesthetic preference. For a formal dress watch like the De Ville, we recommend brown or cognac alligator, which enhances the yellow gold without competing visually with the two-tone case. Alternatively, black calf leather with vegetable tanning offers severity and develops a patina over time. For daily wear, a heavy cotton or grey rubber NATO strap provides versatility while maintaining aesthetic dignity.

How do you change the strap on the Omega De Ville 434.20.40.20.02.002?

The strap is changed by removing the spring bars that secure the strap to the case lugs. Using a dedicated tool or thin pin, compress the internal spring of the bar to release it. Once the bars are removed from the old strap, insert them into the new strap using the same procedure. To avoid scratches on the two-tone case, it is advisable to perform the operation carefully or consult a professional watchmaker.

Can I use aftermarket straps compatible with the De Ville 434.20.40.20.02.002?

Yes, quality aftermarket straps are available specifically manufactured for the 19mm lug width. The Italian artisanal market offers straps in noble materials such as alligator, shell cordovan and calf leather with vegetable tanning, which maintain or amplify the aesthetic values of the two-tone case. When choosing an aftermarket strap, always verify that the width is precisely 19mm and that the buckle or deployant is proportional to the 40mm case diameter.

How long does a leather strap last on the Omega De Ville?

The durability of a leather strap varies depending on material and intensity of use. A quality alligator or shell cordovan strap lasts 4-6 years with regular wear, developing a patina that increases its aesthetic value. A calf leather strap with vegetable tanning resists 2-4 years, depending on water and sun exposure. A natural rubber strap offers superior durability, up to 5-8 years, maintaining structural integrity even in humid environments. Regular maintenance (occasional cleaning and conditioning) significantly extends the life of the strap.

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.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only