Strap for Aquaracer 300M Quartz Chronograph 41 Stainless Steel / Black / Bracelet

The lug width (or ansa width) of the TAG Heuer Aquaracer CAF1110.BA0804 is 20mm. This measurement represents the external distance between the two lugs where the strap is inserted. It is essential to verify this specification before purchasing an aftermarket strap, as an incompatible width compromises both aesthetics and functionality.

For the CAF1110.BA0804, ideal strap options include alligator leather dyed in navy blue or black for formal wear, chrome-tanned calf with fine grain for a patina that improves over time, shell cordovan for collectors seeking superior structural density, or heavy-duty nylon NATO fabric for rapid strap changing. Your choice depends on primary use: daily elegance, intense water sports, or versatile wear.

To change the strap, obtain a small flat-head screwdriver or a dedicated spring bar tool. Position the watch face-down on a soft surface. Insert the tool tip into one of the two holes at the strap end, rotate slightly to flex the spring bar, then remove the old strap. Repeat on the other side. Align the new 20mm strap with the lugs and press gently until the spring bar clicks into position.

Yes, you can use an aftermarket strap with a compatible 20mm lug width, provided it is crafted by specialists in luxury watch straps. Milano Straps offers artisan leather straps (alligator, calf, shell cordovan) and technical fabrics, customisable in sizes, stitching, and initials. We guarantee perfect compatibility and construction quality matching your chronograph.

The lifespan of a leather strap depends on material quality, usage patterns, and maintenance practices. A chrome-tanned calf or shell cordovan strap can last 2–3 years of daily wear, with potential extensions if you rotate multiple straps. Alligator leather, being denser, may exceed 3–4 years. Prolonged exposure to chlorine, salt water, and humidity accelerates deterioration; in such conditions, an FKM rubber strap is technically the superior choice.