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

The lug width is 20 mm. This width is measured internally, from the inner wall of one lug to the other. It is a precise dimension that guarantees complete compatibility with aftermarket straps certified for this specific model: do not confuse it with 18 mm or 22 mm which are standard on other Omega De Ville models.

It depends on usage: for formal elegance we recommend Niloticus alligator or shell cordovan, which amplify the dress-sport character of the case. For everyday versatility, vegetable-tanned calf offers compact grain and a patina that evolves over time. If you anticipate humid or sporty environments, structured FKM rubber protects the watch without aesthetic compromise.

Use a spring bar tool to remove the safety lugs that connect the strap to the case. Rest the watch on a soft surface, locate the upper lug, insert the tool into the small lateral hole to compress the internal spring, and slide the strap upward. Repeat for the lower lug. Installation: same procedure in reverse, ensuring that the lugs click firmly into both seats.

The original Omega is constructed with tight tolerances and proprietary finishes (signed buckles, specific stitching points). An artisanal aftermarket strap can equal or exceed construction quality in terms of materials (natural alligator, hand stitching), but will not bear the Omega logo. For the 424.13.40.21.02.001, choose aftermarket with verified dimensional compatibility certification: 20 mm lug width, compliant lug thickness, total length suitable for your wrist.

An artisanal alligator or vegetable-tanned calf strap of quality lasts 3–5 years in daily use, with regular maintenance (drying after moisture, no prolonged sun exposure). The natural patina improves aesthetics within the first 12–18 months. FKM rubber has similar longevity (3–4 years) if not exposed to intense heat or continuous UV rays. Actual lifespan depends on: frequency of strap rotation, local climate, personal perspiration, and preventive care.