Omega · De Ville

Strap for De Ville Co-Axial 38.7 GMT Stainless Steel / Black

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter39 mm
Reference4833.51.31
FamilyDe Ville
MovementOmega caliber 2628 hours, minutes, Additional 24 hours Hand (adjustable), seconds | date | co-Axial escapement, chronometer
CaseStainless Steel

Recommended spring bar

Spring bars Omega 18mm — single diameter

Technical match for lug width and diameter · lug 18 mm · Ø 1.8 mm

All Omega spring barsOpen →

Straps for the De Ville 4833.51.31

Selected for the 18 mm lug width

All 18 mm straps →

The De Ville 4833.51.31, seen from the bench

The Omega De Ville Co-Axial 38.7 GMT Stainless Steel features the reference 4833.51.31 with a 38.70mm stainless steel case and Omega caliber 2628 co-axial movement. The watch includes a 24-hour GMT hand and date window at 3 o'clock, representing the refined minimalism characteristic of the De Ville line launched in the 1960s. The 18mm lug width is standard for this generation of De Ville watches, balancing structural solidity with visual elegance.

Frequently asked questions

What is the lug width of the Omega De Ville 4833.51.31?

The Omega De Ville 4833.51.31 is fitted with an 18 millimeter lug width. This measurement is specific to the De Ville line of this generation and is essential to verify compatibility before purchasing an aftermarket strap. The 18mm represents the balance between structural solidity and aesthetic refinement, consistent with the proportions of the 38.70mm case.

Which strap is most suitable for the De Ville 4833.51.31?

The ideal strap depends on intended use and dial finish. For maximum formality, black alligator with natural thread stitching amplifies the urban character. For daytime versatility and evolving patina, vegetable-tanned brown or cognac calf is the most recommended choice. Shell cordovan represents the most sophisticated option for those desiring scratch resistance and natural brilliance. NATO straps are discouraged, as they conflict with the formal identity of the watch.

How do you change the strap on the Omega De Ville 4833.51.31?

The strap is changed using a specialized spring bar tool for extracting the pins. After removing the last millimeters of strap from the case, gently compress the retaining pin and extract it perpendicular to the lug. Once freed, insert the new strap ensuring the pins engage completely in the designated holes. It is advisable to perform this operation on a soft surface to avoid scratches on the steel case.

Is an aftermarket strap compatible with the Omega De Ville 4833.51.31?

Yes, any strap certified for 18mm lug width is compatible. The Milano Straps collection offers handcrafted straps in alligator, vegetable-tanned calf, shell cordovan and alternative materials, all specifically sized for this measurement. It is important to verify that the strap is declared for 18mm and that the buckle or deployant is appropriate for the case diameter.

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

The lifespan of a leather strap depends on intensity of use and tanning quality. A good quality vegetable-tanned calf strap lasts an average of 2-3 years with intensive daily use, up to 4-5 years with moderate use. Shell cordovan, due to its structural density, can exceed 5-6 years. Alligator is positioned in the middle, with a lifespan of 3-4 years. Casati Milano straps include an 18-month warranty and can be regenerated through leather reconditioning or buckle replacement.

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