Strap for De Ville Power Reserve Master Chronometer Stainless Steel - Sedna Gold / Beige

The lug width is 19mm. This width is the Omega standard for medium-large watches of 40-42mm and allows the use of quality certified aftermarket straps. To verify compatibility, measure the internal distance between the case lugs: it must be precisely 19mm.

For this two-tone Sedna Gold + steel model, alligator remains the most natural choice: the elegant grain enhances the formal character. Quality alternatives include shell cordovan (deep burgundy, authentic patina over time), vegetable-tanned calf leather (vintage personality), and NATO fabric (casual versatility). Vulcanized rubber is ideal for humid climates.

The 434.23.41.21.09.001 uses two standard 19mm spring bars (one on each side of the case). With a springbar tool (supplied by Casati Milano), gently compress the spring bar, extract the pin from the hole, and remove the old strap. Insert the new strap in the same position and fold the spring bar until it clicks. The procedure takes just a few minutes but we recommend doing it carefully to avoid scratching the case.

Yes, completely. The standard 19mm lug width allows the use of quality aftermarket straps from specialized manufacturers. It is essential to verify that the strap is declared to be compatible with 19mm spring bars. On milanostraps.it you will find a certified selection of customizable 19mm straps, with warranty and technical support.

A quality certified alligator strap has an average lifespan of 3-5 years with daily use and ordinary maintenance. Shell cordovan, thanks to its natural density, can last 5-7 years. Vegetable-tanned calf leather is more delicate (2-4 years if frequently exposed to moisture). Vulcanized rubber lasts 2-3 years before losing elasticity. Proper monthly cleaning with a damp cloth significantly extends the useful life.