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

The lug width of the De Ville 434.20.40.20.59.001 is exactly 19 millimetres. This measurement is standardized by Omega and represents the lugs of the case where the strap is inserted. To verify it correctly, remove the original strap and measure with a digital caliper the distance between the two lugs in their widest section, positioning the tool parallel to the case.

Alligator in brown or black tones represents the classic choice, as its natural texture and the patina it develops over time perfectly complement the elegance of Sedna Gold. For versatility, vegetable-tanned calf leather offers a uniform grain and natural ageing. For casual wear, a NATO strap in silk blue or cotton grey creates an interesting contrast with the formality of the case.

Use a spring bar removal tool (small metal rods that secure the strap to the case lugs). Position the tool in the lug hole, push gently inward to compress the internal spring, and the strap will detach. Repeat on the other side. For installing the new strap, align the holes with the spring bars and push until you hear a click. If you prefer to avoid the risk of scratches, consulting a professional watchmaker is always advisable.

Yes, any strap with a 19mm lug width is compatible. Artisanal straps offer an opportunity to personalize the watch according to your aesthetic taste and usage needs, without compromising functionality. However, ensure that the quality of the material and craftsmanship is consistent with the prestige of the watch itself.

The durability depends on the material, usage, and climate conditions. High-quality vegetable-tanned alligator leather can last 3–5 years under moderate use, developing a beautiful patina. Calf leather has similar durability. Shell cordovan, thanks to its density, can exceed 5–7 years. Factors such as humidity, perspiration, and direct sunlight can accelerate wear. Regular maintenance—drying and periodic conditioning—significantly extends the life of the strap.