Omega · De Ville

Strap for De Ville Co-Axial 38.7 GMT Yellow Gold / Silver / Bracelet

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter39 mm
Reference4133.30.00
FamilyDe Ville
MovementOmega caliber 2628 hours, minutes, Additional 24 hours Hand (adjustable), seconds | date | co-Axial escapement, chronometer
CaseYellow Gold

Recommended spring bar

Spring bars Omega 20mm — 1.8mm diameter

Technical match for lug width and diameter · lug 20 mm · Ø 1.8 mm

All Omega spring barsOpen →

Straps for the De Ville 4133.30.00

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The De Ville 4133.30.00, seen from the bench

The Omega De Ville reference 4133.30.00 is powered by the automatic Caliber 2628 with co-axial escapement and chronometer certification. The movement offers hours, minutes, seconds and an adjustable GMT hand for the second time zone, completed by a date function. The watch is COSC certified for chronometric precision.

Frequently asked questions

What is the correct lug width for the Omega De Ville 4133.30.00?

The Omega De Ville 4133.30.00 has a lug width of 20mm. This measurement represents the internal distance between the case lugs where the strap is attached. It is important to measure the available space using a digital caliper before ordering an aftermarket strap, ensuring that the nominal width is indeed 20mm.

Which strap material pairs best with the De Ville 4133.30.00 in yellow gold?

Alligator remains the classic choice of excellence with the De Ville in yellow gold, especially in black, dark brown, or cognac colors. For contemporary versatility, smooth calf tinted in burgundy or chocolate brown offers sophisticated simplicity. Shell cordovan in mahogany tones creates a natural color affinity with the case gold and is appreciated by collectors seeking more exclusive materials.

How do you change the strap on the Omega De Ville 4133.30.00?

The strap is changed using a simple spring bar removal tool. Position the watch securely, locate the small holes on the case at both sides of the upper lug, insert the tool to gently compress the internal spring, then slide the old strap outward. Repeat the process from the other lug. For new straps, align the holes with the pins and press until you hear a small click of engagement.

Are there quality aftermarket straps available for the De Ville 4133.30.00?

Yes. There are artisanal straps crafted in Italy made with noble leathers (alligator, calf, shell cordovan, vegetable tanning) specifically for the 20mm lug width of the De Ville 4133.30.00. These straps, available online at milanostraps.it or custom-made at the Casati Milano atelier, offer greater versatility, superior construction quality, and customization options compared to stock straps.

How long does a leather strap last on the Omega De Ville 4133.30.00?

The lifespan of a leather strap depends on the material and usage. A quality alligator with vegetable tanning typically lasts 3-4 years of daily wear before requiring replacement, though it continues to function mechanically. Shell cordovan tends to last longer (4-6 years) thanks to its natural density. Frequency of use, exposure to sweat and sun, and care of the piece significantly influence longevity. A well-crafted artisanal strap in vegetable-tanned leather can develop a beautiful patina over time, improving aesthetically even after years of use.

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