Strap for De Ville Prestige Co-Axial 39.5 Stainless Steel / Yellow Gold / Vintage Champagne Silk

The lug width of the De Ville 424.23.40.20.08.001 is 20mm. Verify with a digital caliper the internal distance between the two lugs of the case: the value must be exactly 20mm to ensure compatibility with the strap. Do not confuse it with the case thickness or external diameter.

For the blue dial De Ville 424.23.40.20.08.001, we recommend dark brown alligator (mahogany or chocolate brown) for formal elegance, vegetable-tanned calf leather in deep black for aged patina, or shell cordovan for durability and luxury. A blue-grey satin rubber strap represents the contemporary sporty choice.

Remove the spring bar from the lower lug using a dedicated tool: push upward to disengage. Extract the lugs from the old strap and reinsert into the lugs of the case on the new strap, ensuring that the spring bar locks completely. Repeat from the other end. Never force: the movement should be smooth.

OEM Omega straps for the 424.23.40.20.08.001 are constructed with carefully selected leathers and brushed stainless steel hardware. Artisanal aftermarket 20mm straps (such as those from Casati Milano) offer superior materials—genuine alligator, shell cordovan, vegetable tanning—with aesthetic customization and equivalent craftsmanship. Compatibility is guaranteed in both cases, but leather quality and construction vary significantly.

A quality alligator or calf leather strap lasts 3-5 years with daily wear, up to 7-10 years if worn occasionally. Shell cordovan, being more durable, easily reaches 8-12 years. Lifespan depends on humidity exposure, tanning process, wrist weight, and maintenance. Casati Milano offers an 18-month warranty on all custom-made straps.