Omega · De Ville

Strap for De Ville Prestige Dewdrop Co-Axial 32.7 Red Gold / MOP / Diamond / Bracelet

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

Lug width18 mm
Case diameter33 mm
Reference424.55.33.20.55.007 (aka: 42455332055007)
FamilyDe Ville
MovementOmega caliber 2500 Hours, Minutes, Seconds | Date | Co-Axial Escapement, Chronometer
CaseRed Gold

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 →

The De Ville 424.55.33.20.55.007 (aka: 42455332055007), seen from the bench

The Omega De Ville Prestige 424.55.33.20.55.007 is a contemporary evolution of a lineage born in 1957, representing elegant dress-watch design with a 32.70 mm Red Gold case and mother-of-pearl dial set with diamonds. The 18 mm lug width is precisely proportioned to the case diameter, accommodating straps of 4–6 mm thickness. Powered by the Caliber 2500 Co-Axial movement with chronometer certification, manual or automatic winding, and over 48 hours power reserve, this timepiece combines Swiss sobriety with refined construction and 30 m water resistance.

Frequently asked questions

What is the lug width of the Omega De Ville 424.55.33.20.55.007?

The lug width of this model is exactly 18 mm. This measurement is proportionate to the case diameter of 32.70 mm and ensures correct strap aesthetics. To verify compatibility, measure the distance between the two lugs protruding from the case: it should be precisely 18 mm.

What strap do you recommend for the Omega De Ville 424.55.33.20.55.007 in Red Gold?

For this red gold case we first recommend alligator in medium brown or cognac tones: the natural grain and softness harmonize perfectly with the warmth of gold. An elegant alternative is vegetable-tanned calf leather in dark brown or black, which develops natural patina with use. Shell cordovan remains the choice for those seeking compact texture and intrinsic luster.

How do I change the strap on the Omega De Ville 424.55.33.20.55.007?

Strap change is performed by unscrewing the spring bars that connect the strap to the case, using a dedicated tool (spring bar tool). Remove the bars, slide them out of the old strap, insert them into the new one while keeping the internal spring in the correct position, then reinsert them into the case lugs and tighten gently. If you lack experience, consult a trusted watchmaker.

Which aftermarket straps are compatible with the Omega De Ville 424.55.33.20.55.007?

Any strap with an 18 mm lug width is compatible. You can choose from online collections (such as our 18 mm options available on milanostraps.it), or commission a made-to-measure strap from Casati Milano atelier with personal selection of leathers and customized construction details.

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

A quality leather strap (alligator, vegetable-tanned calf, shell cordovan) typically lasts 3-5 years with daily use. Durability depends on humidity, cleaning frequency, and maintenance. Straps made in atelier with vegetable tanning age beautifully and can be restored. Milanostraps straps carry an 18-month warranty; Casati Milano straps come with 18 months warranty and the possibility of lengthening or partial 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