Omega
De Ville 4503.31.00— lug 20mm

The lug width of the 4503.31.00 is 20 millimeters (20mm), measured center-to-center between the two case lugs. This measurement is compatible with all artisanal straps designed for 20mm lug width and is determined by the proportions of the 31.20mm diameter case.

Alligator is the most classic and elegant choice for the 4503.31.00, thanks to its fine texture that enhances the formal character of the case. For daily versatility, vegetable-tanned calf offers robustness and develops patina over time. Shell cordovan is ideal for exceptional longevity and understated luxury. For sports contexts, a NATO or FKM rubber strap maintains the refined tone of the watch.

To change the strap, you need to remove the spring bars from the case lugs using a specialized tool or small screwdriver. The spring bars pass through the lug holes and lock into the case grooves. Once removed, the old strap detaches easily and the new one is positioned by aligning its holes with the spring bars, which are reinserted until they click into place.

Yes, any aftermarket strap with 20mm lug width is mechanically compatible. However, to achieve optimal aesthetic balance and quality, it is recommended to choose artisanal straps from specialized manufacturers who understand the proportions of a watch with a 31.20mm case and use noble materials such as alligator, vegetable-tanned calf, or shell cordovan.

Durability varies based on material and usage. Quality alligator lasts 3-5 years with daily wear and proper maintenance. Vegetable-tanned calf can last 2-4 years. Shell cordovan is the most resistant and can exceed 7-10 years. Regular maintenance (gentle cleaning, drying after moisture exposure) and rotating multiple straps significantly extends the useful life of each piece.