Omega · De Ville

Strap for De Ville Prestige Co-Axial 39.5 Power Reserve Stainless Steel / Vintage Silver

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

Lug width20 mm
Case diameter40 mm
Reference424.13.40.21.02.003 (aka: 42413402102003)
FamilyDe Ville
MovementOmega caliber 2627 Hours, Minutes, Small Seconds | Date | Co-Axial Escapement, Chronometer, Power Reserve Indicator
CaseStainless Steel

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 424.13.40.21.02.003 (aka: 42413402102003)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The De Ville 424.13.40.21.02.003 (aka: 42413402102003), seen from the bench

The Omega De Ville 424.13.40.21.02.003 is a 39.5mm stainless steel dress watch from the line launched in 1969. It features the Omega 2627 Master Chronometer caliber with Co-Axial Escapement, 54-hour power reserve, and date at 3 o'clock. The strap lug width is 20mm, a classic dress watch proportion that balances elegance without excess.

Frequently asked questions

What is the lug width of the Omega De Ville 424.13.40.21.02.003?

The Omega De Ville 424.13.40.21.02.003 has a lug width of 20mm. This means the strap must be exactly 20mm wide between the two lateral lugs of the case. It is a typical measurement for contemporary dress watches and requires proportioned straps to maintain the aesthetic balance of the timepiece.

Which strap is most suitable for the Omega De Ville 424.13.40.21.02.003?

Alligator is the classic choice for the De Ville: natural grain and patina development over time create formal elegance. Shell cordovan with vegetable tanning offers a rich and deep patina. For everyday versatility, Italian calf with steel deployant clasp remains a noble alternative. Technical fabric NATO ensures modern dynamism without compromising the dress nature of the watch.

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

The procedure requires minimal tools (spring bar tool). Position the watch on a soft surface. Insert the end of the tool into the small lateral hole of the spring bar and press gently toward the center of the case until you feel the release click. The spring bar will partially come out. Repeat on the other side. Remove the old strap and insert the new one by aligning the holes with the lugs, then press until you hear the locking click on both sides.

Is an aftermarket strap compatible with the Omega De Ville 424.13.40.21.02.003?

Yes, any strap with a 20mm lug width is mechanically compatible with this model. Compatibility depends on construction quality: ensure the strap has well-crafted lugs, consistent thickness (approximately 3-4mm for leather) and finishes that respect the refinement of the case. Straps from milanostraps.it are specifically selected for the De Ville.

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

Durability depends on usage and maintenance. A quality alligator or shell cordovan strap lasts 3-5 years with regular daily use. Calf, being a more delicate fiber, may last 2-3 years. Essential maintenance consists of keeping the strap dry, avoiding prolonged exposure to heat and humidity, and periodically applying a food-grade silicone conditioner. The patina that develops over time does not degrade the leather, but rather ennobles it.

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