Technical Archive

TAG Heuer
Aquaracer CAF1011.FT8011— lug 21mm

TAG Heuer Aquaracer CAF1011.FT8011: 21mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Aquaracer 300M Chronotimer Stainless Steel / Yellow / Rubber

Artisanal Note

"This model requires a precise 21mm lug width to preserve the original sartorial balance."

Technical Specifications

TAG Heuer CAF1011.FT8011
Lug Width
21 mm

The essential strap measurement.

Browse 21mm straps →
Reference

CAF1011.FT8011

Movement

ETA caliber E20.321 Additional 24 Hour Hand (adjustable), Hours, Minutes, Seconds, World Time | Date, Day, Month | Chronograph | Alarm | Thermometer

The Heritage

The Aquaracer CAF1011.FT8011 is powered by the ETA E20.321 caliber with chronograph, adjustable GMT and alarm functions. The movement also integrates a thermometer, full calendar with day and month, and world time indication. The watch features 21mm lugs and offers multiple complications in a single multifunctional solution.

FAQ

What is the lug width of the TAG Heuer Aquaracer CAF1011.FT8011?

The lug width of the TAG Heuer Aquaracer CAF1011.FT8011 is 21 millimetres. This measurement is taken between the two spring bars that protrude from the case and is essential for selecting compatible straps. The 21mm width is an intermediate size, not universal, requiring careful aftermarket selection.

Which strap is best suited for the TAG Heuer Aquaracer CAF1011.FT8011?

Alligator leather with vegetable tanning represents the luxury choice, offering exceptional durability and a patina that develops over time. For understated elegance, calf leather is ideal; for pure sportiness, rubber or silicone straps provide complete water resistance and immediate cleaning. NATO straps in ballistic canvas offer functional versatility and daily practicality.

How do you change the strap on this model?

To change the strap, remove the two spring bars connecting the strap to the case using a dedicated removal tool or small screwdriver. Apply gentle leverage to extract the pin, then remove the worn strap. Insert the new strap, aligning it with the lugs, and reinsert the spring bars until they click fully into place, verifying complete seating. This operation takes minutes and requires no specialist technical expertise.

Are aftermarket straps compatible with the CAF1011.FT8011?

Yes, all straps with a 21mm lug width are compatible with the TAG Heuer Aquaracer CAF1011.FT8011. Milano Straps offers a wide selection of 21mm straps in diverse materials and finishes, all ready for shipping. For advanced customisation and bespoke sizing, the Casati Milano atelier crafts made-to-measure straps with direct consultation and an 18-month warranty.

How long does a leather strap last on a sports watch like this one?

The lifespan of a leather strap depends on the tanning method and usage patterns. Vegetable-tanned alligator can last 5–10 years with proper maintenance; traditional calf leather has an average lifespan of 3–5 years under normal conditions. Humid environments, frequent bathing and perspiration accelerate wear. For an Aquaracer used in aquatic environments, rubber or silicone straps are more resistant to water and saltwater, delivering stable performance even with intensive use.