Omega · De Ville

Strap for De Ville Co-Axial 41 Chronograph Red Gold / White

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

Lug width20 mm
Case diameter41 mm
Reference4643.20.32
FamilyDe Ville
MovementOmega caliber 3313 Hours, Minutes, Small Seconds | Date | Chronograph, Column wheel | Co-Axial Escapement
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 4643.20.32

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The De Ville 4643.20.32, seen from the bench

The Omega De Ville reference 4643.20.32 is equipped with the automatic Caliber 3313 with Co-Axial escapement and chronograph function with column wheel. The movement offers indication of hours, minutes, small seconds and date. The watch has 20mm lugs.

Frequently asked questions

What is the lug width of the Omega De Ville 4643.20.32?

The lug width of the De Ville 4643.20.32 is 20mm. This intermediate dimension is proportionate to the 41mm case diameter and requires precise compatibility when selecting an aftermarket strap. Measuring the lug width between the two lugs integrated into the case ensures correct selection.

Which strap material pairs best with the yellow gold of the 4643.20.32?

Black or dark brown alligator remains the most elegant choice for a yellow gold watch: the natural grain of the leather imparts visual movement and the chromatic contrast enhances the value of the precious metal. Alternatively, shell cordovan develops refined patina over time, while vegetable-tanned calf offers a more subtle tonal dialogue between leather and gold.

How do you change the strap on the De Ville 4643.20.32?

The strap is removed by using a spring bar tool (a thin lever instrument) to compress the spring bars that hold the strap to the lugs. Insert the tool into the space between the lug and strap, compress the lower spring bar, and slide the strap outward. The reverse procedure installs the new strap. If you are not experienced, it is advisable to consult an expert.

Does the 4643.20.32 accept aftermarket 20mm straps?

Yes, the De Ville 4643.20.32 is fully compatible with quality aftermarket straps constructed for 20mm lug width. Always verify the measurement before purchase and choose reliable manufacturers that guarantee dimensional precision and material quality. Milano Straps offers a selection of 20mm straps tested for this model.

How long does a natural leather strap last on a watch worn daily?

A quality alligator or shell cordovan strap, worn daily with normal exposure to humidity and light, maintains structural integrity for 3-5 years before showing signs of wear at the lug area. Longevity depends on maintenance (periodic cleaning, protection from excessive humidity) and the tanning method used. Casati Milano straps include an 18-month warranty and allow for future upgrades.

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