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

The lug width is 20 mm. This is the standard for reference 424.13.40.21.01.002. To verify it, measure the internal distance between the two spring bars (the metal protrusions where the strap is fitted): it must be exactly 20 mm. With this measurement, the De Ville is compatible with the complete selection of 20mm artisanal straps from Milano Straps.

Vegetable-tanned calf is the most natural choice: it develops a noble patina over time and creates a personal dialogue with your wrist. Alligator represents pure formality, ideal for diplomatic contexts. Shell cordovan offers constructive density and athletic resistance. For versatility, NATO or FKM rubber allow seamless day-to-night transitions without betraying the elegance of this reference.

The strap is changed manually using a tool called a spring bar tool. Locate the two spring bars at the ends of the case, apply gentle pressure toward the center of the case to release the spring bar from its seat, and remove the strap. To install the new strap, align the strap holes with the spring bars and press until it locks in place. If you lack experience, contact Casati Milano atelier: the operation is quick and risk-free.

Yes, completely. Any strap with a 20mm lug width is compatible. Milano Straps artisanal straps are built to the same construction standards as original Omega straps, often with superior quality in terms of leather and finishing. Casati Milano atelier, exclusively, can personalize every detail: leather, thickness, topstitching, initials.

A quality leather strap, with vegetable tanning and artisanal construction, typically lasts 5-8 years with daily use. Durability depends on exposure to water, heat, humidity, and frequency of use. Vegetable-tanned calf ages nobly, often improving aesthetically over time. Shell cordovan lasts even longer: up to 10-12 years. All Milano Straps straps are guaranteed for 18 months.