Strap for De Ville Co-Axial 41 Chronoscope Stainless Steel / Silver / Bracelet

The lug width of the Omega De Ville 4550.30.00 is 20 millimetres. This measurement is taken from the upper lug attachment point to the lower lug attachment point on the case. It is essential to verify this dimension before purchasing a strap, as even a difference of half a millimetre can cause fitting issues.

For the De Ville 4550.30.00 we recommend alligator in dark brown or black, which emphasises the urban elegance of the model. Vegetable-tanned calf in burgundy represents a more personal alternative, while black FKM rubber offers practicality while maintaining formal dignity. Your choice depends on your lifestyle and primary use context: ceremonies and formal occasions merit alligator, sustained daily wear appreciates calf, all-terrain use tolerates rubber.

Strap replacement requires the use of a specific tool (spring bar tool). Position the flat screwdriver in the lateral groove of the upper lug, gently press downward to release the spring bar, extract the old strap, insert the new one by aligning the holes, and reposition the spring. This is a 2-3 minute operation for those with experience. If you are a beginner, the Casati Milano atelier can assist during your first replacement.

Yes, any strap with a standard 20 millimetre attachment is compatible with the De Ville 4550.30.00, regardless of manufacturer. However, for optimal fit and construction quality consistent with the watch, we recommend bespoke artisanal straps made to measure. Standard industrial straps may present different tolerances that affect comfort.

The lifespan of a leather strap depends on frequency of use, climatic conditions and care. A quality alligator or calf strap used daily in temperate climate typically lasts 3-5 years before requiring replacement. Shell cordovan, if maintained with dedication, can exceed 7-8 years. Prolonged exposure to sun and humidity reduces durability. Casati Milano offers an 18-month warranty on bespoke straps and can assess the restoration of damaged straps.