TAG Heuer Aquaracer CAF1011.BA0821
The TAG Heuer Aquaracer CAF1011.BA0821 takes a 21 mm watch band.

TAG Heuer · Aquaracer
- Lug width
- 21 mm
- Case diameter
- 43 mm
- Reference
- CAF1011.BA0821
- Family
- Aquaracer
- Case material
- Acciaio
- Model
- Aquaracer 300M Chronotimer Stainless Steel / Yellow / Bracelet
- Year
- 2008
Bands that fit
Cut and stitched in Milano, in the width this watch takes.
Will a strap close on your wrist?
Set for this watch: 43 mm of case and 21 mm between the lugs. Add your wrist and see where a standard strap would close.
mm
Filled in with the case diameter, which is what we hold for this reference. Measure the watch tip to tip for the exact answer: it is usually a few mm more.
Enter your wrist measurement to see whether a standard 75/115 mm strap closes on you, and where.
Sizing notes
- 21 mm is the gap between the lugs, so a 21 mm band goes in without adapters. Whether it sits flush against a 43 mm case depends on how that case is shaped.
- 21 mm is an odd size: most ready-made bands are made in even widths, so this reference needs one cut to measure or a band that runs in odd sizes. Why some watches take odd sizes →
- Inside the Aquaracer family the lug width is not one number: it runs 13, 14, 15, 16, 17, 20, 20.5, 21, 22 mm. This reference is the 21 mm one, so a band bought for another Aquaracer may not fit it. Why the size changes inside a family →
- 21 mm is not a common size: only 2,956 of the 41,485 watches measured take it (7.1%), so ready-made choice at this width is narrower than at 20 or 22 mm. Every watch that takes 21 mm →
Other Aquaracer references
- Aquaracer 300M Chronotimer 43 Stainless Steel / Black / BraceletCAF1010.BA0821
20 mm - Aquaracer 300M Chronotimer 43 Stainless Steel / Black / RubberCAF1010.FT8011
21 mm - Aquaracer 300M Chronotimer Stainless Steel / Yellow / RubberCAF1011.FT8011
21 mm - Aquaracer 300M Quartz Chronograph 43 Stainless Steel / Black / BraceletCAF101A.BA0821
20 mm - Aquaracer 300M Quartz Chronograph 43 Stainless Steel / Black / RubberCAF101A.FT8011
20 mm - Aquaracer 300M Quartz Chronograph 43 Stainless Steel / Silver / BraceletCAF101B.BA0821
20 mm
Same lug width, other TAG Heuer lines
- Formula 1 Red Bull Racing Special Edition / BraceletCAZ101AL.BA0842
21 mm - Formula 1 Chronograph Quartz Stainless Steel / Blue GulfCAZ101AT.BA0842
21 mm - Autavia Heuer 02 Stainless Steel / Watches of Switzerland / StrapCBE2115.FC8226
integrated - Autavia Heuer 02 Chronometer Flyback Stainless Steel / BlackCBE511A.FC8279
21 mm - Carrera Calibre 16 41 Stainless Steel / Blue / CalfCBM2112.FC6455
21 mm - Carrera Chronograph Dato Glass Box Stainless Steel / GreenCBS2211.FC6545
21 mm
Vintage Black Calfskin Leather Strap
Hammered Pink Strap with Ecru Stitching
Hammered calfskin strap in cuoio
Matte Black Alligator Strap
Millennium Green Alligator Strap — Minimal Stitching