Strap for De Ville Prestige Co-Axial 39.5 Power Reserve Red Gold / Silver / Diamond

The lug width is 20mm. This measurement represents the internal distance between the two lugs of the case. To verify it, use a digital caliper measuring from the internal base to the internal base of the lugs. A tolerance of ±0.1mm is acceptable in watchmaking practice.

For a De Ville 39.50mm in rose gold, natural brown African alligator is the most classic choice: the fine grain does not contrast with the polished case finish and develops a natural patina over time. Grey-anthracite calf with vegetable tanning offers a contemporary alternative with greater chromatic contrast. On milanostraps.it you will find all compatible 20mm straps that can be personalised.

Gently remove the original strap by pressing on the spring bar spring (the small metal bar that holds the strap). Use a spring bar tool or a small screwdriver to facilitate the operation. Insert the new strap by aligning the holes to the lugs and let the spring snap into place. Never force: the movement should be smooth. If unsure, contact an authorised Omega service centre.

Any strap with a 20mm lug width is compatible. On milanostraps.it you will find alligator, calf, shell cordovan and NATO in various colours, all ready for shipment. Artisanal straps offer customisation flexibility (sizes, stitching thread, initials) that serial production does not allow. The Casati Milano atelier creates bespoke pieces with direct consultation.

A quality leather strap lasts an average of 3-5 years with daily wear, depending on the tanning and care. Vegetable tanning develops a natural patina but is more sensitive to moisture than synthetic treatments. Alligator, thanks to its fibrous structure, offers superior durability (5-7 years). Protection from prolonged moisture, drying after water contact and avoiding excessive perspiration extends the life. The Casati Milano atelier guarantees 18 months of service on bespoke straps.