Strap for Mille Miglia Chronograph Silver / Rubber

The lug width of the Chopard Classic Racing 168511-3015 is 20mm. This is the distance between the two attachment pins on the case lugs, measured from the centre of one pin to the centre of the other. It is essential to verify this measurement before ordering a strap, as any error would compromise compatibility.

For the Classic Racing 168511-3015, we recommend straps in black or dark brown alligator, in vegetable-tanned calf leather with natural patina development, or in heavy cotton NATO. Superior-quality alligator responds to the severity of the stainless steel satin-finished case, vegetable-tanned calf ages personally over time, whilst NATO emphasises the authentic racing heritage of the model.

Strap changing requires a dedicated strap removal tool. Position the watch in a protective holder, use the tool to gently push the lug attachment pins (which slide within perpendicular channels). Once the pins are removed, the old strap detaches freely. Insert the new strap into the lugs, reinsert the pins and verify they sit fully home. We do not recommend attempting this yourself without experience: a professional watchmaker will complete the operation in minutes without risk of scratching.

Yes, provided the strap is constructed to 20mm lug width. An aftermarket strap in quality-grade alligator, calf or vegetable-tanned leather is compatible and does not compromise the watch's value, as long as the finish and materials respect the case's construction standard. Avoid polyurethane synthetic or industrially chrome-tanned leather straps.

A natural alligator strap lasts 5–7 years with regular wear and routine maintenance (occasional cleaning, drying after perspiration, annual conditioning). Vegetable-tanned calf develops patina over 3–4 years of intensive use, then extended durability depends on construction quality. NATO synthetics can last 8–10 years without degradation. Longevity is always linked to wear frequency and climatic exposure conditions.