Strap for De Ville Prestige Co-Axial 38.7 Power Reserve Stainless Steel / Silver / Bracelet

The Omega De Ville 4532.31.00 is fitted with a 20mm lug width. This measurement is precise and does not admit variations: a strap with a smaller lug width would slip off the case lugs, while one with a larger width would create excessive tension. To verify it, measure the internal transverse distance between the two lugs of the case with a calibrated ruler.

Alligator leather with French tanning is the classic choice: medium grain, noble patina, neutral colours that let the dial take centre stage. Shell cordovan represents the premium alternative for those seeking extraordinary durability and chromatic evolution over time. Calf leather with vegetable tanning offers balance between aesthetics and practicality, with a more pronounced texture than alligator. Not recommended: printed straps or those with metallic effects.

The operation requires minimal tools: a spring bar tool (a specific lever for the lugs) and two steady fingers. Position the tool in the internal groove of the lower lug, lift gently until the metal shaft (spring bar) is released, remove the old strap and insert a new one, ensuring that the shaft locks in both lugs. A reversible and repeatable operation indefinitely without damage to the case.

No, if the strap is correctly constructed. A well-calibrated 20mm lug width with proper loops (the leather loops that embrace the lugs) distributes tension uniformly. Milano Straps are tension-tested to guarantee an exact fit on the 4532.31.00 without stress. Avoid poor-quality straps where the loops are elasticised or stitching fails easily.

A high-quality alligator or shell cordovan, with appropriate tanning, lasts 18–36 months depending on daily use and care. Constant exposure to sweat, UV rays and humidity variations reduces lifespan. Calf leather with vegetable tanning ages more quickly (12–24 months) but develops a fascinating patina. Milano Straps guarantees 18 months on the stitching work; the leather itself evolves naturally. Regular maintenance (cleaning, seasonal conditioning) extends useful life.