TAG Heuer · Aquaracer

Strap for Aquaracer 500M Calibre 16 44 Stainless Steel / Black / Bracelet

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter44 mm
ReferenceCAJ2110.BA0872 (aka: CAJ2110BA0872, CAJ2110)
FamilyAquaracer
MovementTAG Heuer caliber 16 hours, minutes, small seconds | date | Chronograph
Year2012
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Aquaracer CAJ2110.BA0872 (aka: CAJ2110BA0872, CAJ2110)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Aquaracer CAJ2110.BA0872 (aka: CAJ2110BA0872, CAJ2110), seen from the bench

The TAG Heuer Aquaracer CAJ2110.BA0872 is a 44mm stainless steel chronograph from the Aquaracer 500M collection, descended from the 2004 sports diving heritage line. Powered by the Heuer Calibre 16 automatic movement with 42-hour power reserve, it features a unidirectional bezel, satin-finished case, and water resistance to 300 metres. The 20mm lug width accommodates the integrated bracelet and supports the chronograph mechanism with small seconds counter at 6 o'clock and date window at 3 o'clock.

Frequently asked questions

What is the lug width of the TAG Heuer Aquaracer CAJ2110.BA0872?

The lug width of the TAG Heuer Aquaracer CAJ2110.BA0872 is 20mm. This measurement represents the internal distance between the lugs on the case and is essential for strap compatibility. Precise measurement using callipers ensures a perfect fit.

Which strap is best suited for the TAG Heuer Aquaracer CAJ2110.BA0872?

For the 44mm Aquaracer chronograph CAJ2110.BA0872, robust and visually balanced straps are recommended: alligator in dark tones (black, petrol blue) emphasises the sports character; vegetable-tanned calf offers an elegant alternative with natural ageing; structured rubber maintains the diving heritage; NATO ensures seasonal versatility.

How do you change the strap on a TAG Heuer Aquaracer CAJ2110.BA0872?

Strap replacement requires a spring bar tool. Place the watch on a soft surface, locate the metal tabs beneath the lugs, gently press with the tool to release the spring bar, remove the old strap and insert the new one until you hear a click. Work carefully on a padded surface to avoid scratching.

Is an aftermarket strap compatible with the TAG Heuer Aquaracer CAJ2110.BA0872?

Yes, any quality strap designed for the 20mm lug width is compatible with the CAJ2110.BA0872. Milano Straps artisanal straps, crafted from alligator, calf, rubber or NATO material, are tested for perfect fit and secure attachment to the original lugs.

What is the average lifespan of a leather strap for a TAG Heuer Aquaracer?

A high-quality leather strap (alligator, calf or shell cordovan) with vegetable tanning lasts on average 3-5 years with daily use in temperate climates. Structured rubber offers superior durability (5-8 years) due to weather resistance. Lifespan also depends on frequency of wear, sun exposure and personalised maintenance.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only