Strap for De Ville Byzantium Co-Axial 33.4 Co-Axial Stainless Steel / Black

The Omega De Ville 7801.50.31 features a 20mm lug width, standardized on the 33.40mm case. This width is measured from the center of one spring bar to the center of the other in a direction perpendicular to the bars themselves. Correct measurement ensures compatibility with the extensive range of artisanal straps available in this size.

For the De Ville 7801.50.31, we recommend alligator for sharp contrast and visual geometry, vegetable-tanned calf leather for a patina that evolves over time, or shell cordovan for durability and natural character. The choice depends on use context: pure elegance calls for satin alligator, daily versatility favors aged calf, sporty fluidity benefits from fine-grain rubber.

The strap is changed using a spring bar tool: position the tool under the spring bar on the side opposite the buckle, apply gentle upward pressure to release the end, carefully remove the old strap, insert the new one by aligning the holes with the bars and pressing until you hear a click. A simple operation but requiring care to avoid scratching the case: we recommend having it done at an atelier if you're doing this for the first time.

Yes, completely. High-quality artisanal 20mm straps are fully compatible with the Omega's standard lug width. What matters is ensuring that the <a href="https://milanostraps.it/collections/cinturini-orologi-per-misura-ansa-20mm">lug width is indeed 20mm</a> and that construction quality (stitching, leather, finishing) matches the watch's level. Milano Straps offers certified straps for this size.

A high-quality artisanal leather strap, made with vegetable tanning and saddle-stitched, has an average lifespan of 3-5 years with moderate daily use. Useful life depends on exposure to moisture, frequency of use, type of tanning (vegetable-tanned ages better than industrial) and maintenance. Casati Milano guarantees 18 months; subsequent aging is natural and becomes part of the strap's character.