Strap for De Ville Co-Axial 37.5 Yellow Gold / Silver / LTD

The lug width of the Omega De Ville 5911.31.22 is 19.00 mm. This measurement is specific to this model and represents the internal distance between the two lugs of the yellow gold case. To verify, use a digital caliper positioned perpendicular to the spring bars, measuring only the space between the inner shoulders of the case, excluding the spring bars themselves.

For the 37.50 mm yellow gold De Ville, we recommend cognac or dark brown alligator for maximum elegance, or vegetable-tanned calf in natural tones (hazelnut, tobacco) for balance between versatility and maintenance. Wine shell cordovan is a bold alternative for those seeking superior tactile density and noble patina over time.

To change the strap: gently remove the original strap using a spring bar remover tool. Locate the spring bars that pass through the lug attachments, apply light pressure from below to release the spring bar upward and remove the strap. Insert the new 19mm strap by aligning the holes, reinsert the spring bar and ensure it clicks securely on both sides.

Yes, any strap compatible with the 19mm lug width is technically compatible with the De Ville 5911.31.22. However, we recommend choosing carefully in terms of material and colour: yellow gold deserves high construction quality (alligator, shell cordovan, fine calf). Inexpensive synthetic leather straps do not do justice to the watch.

A fine leather strap (alligator, shell cordovan, vegetable-tanned calf) on a dress watch like the De Ville typically lasts 4-6 years with daily use, extendable to 7-8 years with careful maintenance (minimal exposure to sweat, direct sunlight and humidity). Periodic replacement is recommended to preserve functionality and appearance. Casati Milano provides an 18-month warranty on custom-made straps.