Strap for Aquaracer 300M Quartz Chronograph 43 Stainless Steel / Black / Bracelet

The TAG Heuer Aquaracer CAF101A.BA0821 features a 20-millimetre lug width. This specification indicates the distance between the horizontal lugs of the case where the strap is inserted. It is essential to verify this dimension when purchasing an aftermarket strap, as an incorrect size would not fit properly into the spring bars.

The choice depends on intended usage and personal aesthetics. For elegance combined with the watch's sporting DNA, black alligator or vegetable-tanned calf leather with uniform grain are optimal. For frequent water exposure, we recommend shell cordovan for its natural water resistance, or vulcanised rubber for intensive diving use. Each material develops its own unique patina and character over time.

Remove the watch from your wrist and position it with the dial facing downward. Locate the horizontal spring bars situated beneath the lugs (case shoulders). Using a dedicated spring bar tool, press the small elastic element inward and gently extract the pin. Repeat on the other side. To install the new strap, insert the spring bars into the lugs and ensure they engage securely.

Yes. Any strap with a 20mm lug width is compatible with your TAG Heuer Aquaracer. Milanostraps.it offers artisanal 20mm straps in alligator leather, shell cordovan, vegetable-tanned calf, and rubber options. All straps can be personalised in length, embroidered initials, and stitching colour of your choice.

Durability depends on material type and frequency of use. Shell cordovan, thanks to its crystalline density, resists wear for 3-5 years with moderate daily use and regular maintenance (cleaning with damp cloth, conditioning twice yearly). Vegetable-tanned calf typically lasts 2-3 years. Alligator, due to its porous structure, requires greater protection and lasts 2-4 years. Casati Milano's warranty covers all artisanal straps for 18 months.