Omega · De Ville

Strap for De Ville Master Chronometer Stainless Steel - Sedna Gold / Beige - Diamond

Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width19 mm
Case diameter40 mm
Reference434.23.40.20.59.001 (aka: 43423402059001)
FamilyDe Ville
MovementOmega caliber 8800 Hours, Minutes, Seconds | Date | Chronometer, Co-Axial Escapement
CaseSedna Gold, Stainless Steel

Recommended spring bar

Spring bars Omega Speedmaster Seamaster 19mm

Technical match for lug width and diameter · lug 19 mm · Ø 1.8 mm

All Omega spring barsOpen →

The De Ville 434.23.40.20.59.001 (aka: 43423402059001), seen from the bench

The De Ville is equipped with the Omega 8800 automatic caliber with co-axial escapement and chronometer certification. The movement indicates hours, minutes, seconds and date. The case features 19mm lugs for the strap.

Frequently asked questions

What is the lug width of the Omega De Ville 434.23.40.20.59.001?

The Omega De Ville 434.23.40.20.59.001 has a lug width of 19mm. This dimension is specific to this model and requires straps built specifically for this width. It is not compatible with standard 18mm or 20mm straps.

What is the best strap for the Omega De Ville 434.23.40.20.59.001?

The ideal strap depends on use. For formal occasions, we recommend cognac alligator or vegetable-tanned calfskin in brown tones. Bordeaux shell cordovan is excellent for evening wear. For daily use, black or chocolate brown calfskin with steel deployant clasp offers durability and elegance without compromise.

How do I change the strap on my De Ville 434.23.40.20.59.001?

Remove the strap using a dedicated spring bar tool or a fine-tipped instrument to press the lateral spring bars. Once the springs are released, slide the old strap outward. Insert the new strap into the seat and reposition the spring bars until they click shut. Verify that the lugs are locked symmetrically.

Is an aftermarket strap compatible with the Omega De Ville 434.23.40.20.59.001?

Yes, provided the strap is constructed for the 19mm lug width. Generic 20mm or 18mm straps will not fit properly. MilanoStraps offers a specialized collection of 19mm straps compatible with this model, available in various leathers and finishes.

How long does a leather strap last on a watch worn daily like the De Ville?

A quality leather strap (alligator, shell cordovan, vegetable-tanned calfskin) typically lasts 3-5 years with daily wear, depending on sun exposure, humidity, and care. Natural leather oils and lug wear accelerate aging. The MilanoStraps 18-month warranty covers manufacturing defects; preventive replacement is recommended beyond 4-5 years.

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