Chopard
Classic Racing 168513-3001— lug 23mm

The Chopard Classic Racing 168513-3001 features a lug width of 23 millimetres. This width is common among large-format chronographs and was selected to maintain balanced proportions between the 45-millimetre case and strap. To verify the measurement, position a ruler horizontally between the two lug attachment points where the leather secures to the case.

For the 168513-3001, alligator, calf leather, and FKM rubber are recommended. Alligator (particularly Mississippi grade) offers a naturally geometric texture that dialogues perfectly with the satin-brushed stainless steel case. Vegetable-tanned calf develops suppleness and an involuntary patina through daily wear. FKM rubber is ideal for marine environments or intensive use contexts. Each material choice should respond to your wearing context and personal philosophy of watch utilisation.

Strap replacement requires removing the spring bars from the lugs using a dedicated tool—an artisanal strap-changing implement or a thin flat blade with hook. Insert the tip into the lug slot to release spring tension, extracting the bar and freeing the old strap. Align the new strap with the spring bars with precision, ensuring the 23-millimetre lug width is perfectly contained. The operation demands delicacy to avoid case damage.

Yes. Artisanal 23mm straps are specifically manufactured for Chopard chronographs. Milano Straps offers online solutions in alligator, calf leather, and rubber with personalisation possibilities (sizing, initials, stitching thread selection). For a more comprehensive experience, the Casati Milano atelier creates bespoke straps with personal leather selection, real-time updates, and an 18-month warranty.

A quality artisanal leather strap, subjected to moderate wear (3-4 days weekly), typically lasts 4-6 years before requiring replacement. Vegetable tannage ages more elegantly but proves slightly less durable than hybrid vegetable-synthetic methods. Factors including humidity, wearing frequency, sun exposure, and preventative care significantly influence longevity. An alligator strap, if properly maintained, can exceed 7-8 years of service.