Strap for TAG Heuer x Fragment Design Chronograph

The lug width of the TAG Heuer Formula 1 CAZ201A.BA0641 is 20mm. This width is determined by the distance between the lugs' attachment points on the integrated case. To measure correctly, insert a digital calliper between the two lugs without the watch on your wrist: you will read a clear space of 20mm. An incompatible strap may not fit properly or could compromise the watch's aesthetics.

The ideal strap depends on your intended use and aesthetic preferences. Vegetable-tanned alligator offers timeless elegance and develops natural patina over time. Shell cordovan ensures excellent durability and material density. Satin or vintage calf leather is perfect for intensive daily wear and extended comfort. A sturdy canvas NATO maintains motorsport spirit, whilst rubber is the most performance-oriented choice for extreme environments. All these materials are available in custom personalisation through the Casati Milano atelier.

Strap replacement on the CAZ201A.BA0641 is performed using the lug attachments. To proceed: hold the watch firmly, locate the spring bar stops inside the lugs (upper and lower), use a small tool (spring bar tool) to compress the internal spring pin and release the old strap. Insert the new 20mm strap by aligning the lugs and allowing the pin to snap into place. If you are not familiar with this procedure, consult a professional: the integrated lugs on the Formula 1 require precision to avoid scratching the case.

Yes, absolutely, and it is highly recommended. Milano Straps offers a wide selection of 20mm aftermarket straps compatible with the CAZ201A.BA0641, crafted in alligator, shell cordovan, calf leather and other artisanal finishes. Using a high-quality aftermarket strap does not compromise your watch and is in fact common practice among collectors who wish to personalise their timepiece. The Casati Milano atelier creates bespoke straps with personal leather selection and an 18-month warranty.

The lifespan of a leather strap varies based on material, use and maintenance. High-quality alligator or shell cordovan, subjected to moderate wear, can last 5–10 years. Calf leather, more delicate, requires greater care and has an average lifespan of 3–5 years under intensive daily use. The deployant buckle and stitching thread significantly influence longevity: a robust stainless steel deployant and quality silk stitching substantially extend the strap's lifecycle. The Casati Milano atelier offers an 18-month warranty on all bespoke straps.