Omega · De Ville

Strap for De Ville Master Chronometer Stainless Steel / Black / Bracelet

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

Lug width

19mm

19 mm straps All Omega

Lug width19 mm

Case diameter40 mm

Reference434.10.40.20.01.001 (aka: 43410402001001)

FamilyDe Ville

MovementOmega caliber 8800 hours, minutes, seconds | date | chronometer, co-Axial escapement

Year2022

CaseStainless Steel

Recommended spring bar

Spring bars Omega Speedmaster Seamaster 19mm

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

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All Omega spring barsOpen →

Straps for the De Ville 434.10.40.20.01.001 (aka: 43410402001001)

Selected for the 19 mm lug width

All 19 mm straps →

The De Ville 434.10.40.20.01.001 (aka: 43410402001001), seen from the bench

The Omega De Ville 434.10.40.20.01.001 is the contemporary evolution of an icon born in 1967, embodying the brand's XXI century philosophy of sober technical intelligence in service of design. It features the in-house developed caliber 8800 Master Chronometer with METAS certification and 55 hours of power reserve, built for decades of precision. The stainless steel case measures 40 mm in diameter with a 19 mm lug width, requiring careful strap selection to ensure optimal fit and durability.

Frequently asked questions

What is the lug width of the Omega De Ville 434.10.40.20.01.001?

The lug width is 19 millimetres. This measurement is critical for strap compatibility: a 20mm or 18mm strap will not fit correctly without risking damage to the case lugs.

Which strap do you recommend for the Omega De Ville 434.10.40.20.01.001?

Dark brown alligator represents the classic choice that enhances the stainless steel case. For daily wear, vegetable-tanned calf offers softness and natural patina. For formal settings, black alligator or shell cordovan guarantee elegance without compromise.

How do you change the strap on an Omega De Ville 434.10.40.20.01.001?

The strap is secured via spring bars inserted into the dedicated holes in the lugs. Using a dedicated tool (spring bar tool), press the bar to release it from one side, then remove the old strap. Insert the new strap by aligning the holes and reinsert the bars until they click into place.

Is an aftermarket strap compatible with my Omega De Ville 434.10.40.20.01.001?

Yes, provided it measures exactly 19mm in width. Compatibility is not limited to genuine Omega straps, but it is essential to verify the precise measurement to avoid play or excessive pressure on the lugs.

How long does a leather strap last on a watch like the De Ville 434.10.40.20.01.001?

With proper maintenance (periodic conditioning, protection from moisture), an alligator or calf strap lasts 4-6 years of daily wear. Shell cordovan with vegetable tanning ages better and can last 7-10 years. Durability depends on exposure to perspiration, water and extreme temperatures.

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