TAG Heuer · Aquaracer

Strap for Aquaracer 300M Calibre 16 42 Stainless Steel / Silver / 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 diameter42 mm
ReferenceCAP2111B.A0833 (aka: CAP2111BA0833, CAP2111B)
FamilyAquaracer
MovementTAG Heuer caliber Calibre 16 Hours, Minutes, Small Seconds | Date | Chronograph
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 CAP2111B.A0833 (aka: CAP2111BA0833, CAP2111B)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Aquaracer CAP2111B.A0833 (aka: CAP2111BA0833, CAP2111B), seen from the bench

The TAG Heuer Aquaracer CAP2111B.A0833 is a 42mm stainless steel automatic chronograph from the Aquaracer collection, featuring the TAG Heuer Calibre 16 movement with integrated chronograph, hours, minutes, small seconds, and date display. The unidirectional bezel with tachymetric scale and 300-meter water resistance define its sports-diving heritage dating to 1963. The 20mm lug width accommodates a wide range of aftermarket straps in leather and technical materials.

Frequently asked questions

What is the lug width of the TAG Heuer Aquaracer CAP2111B.A0833?

The lug width of the TAG Heuer Aquaracer CAP2111B.A0833 is 20mm. This measurement is taken between the two riveted lugs on the case and represents the available space for strap insertion. Always verify the measurement with a digital calliper positioned precisely between the lugs to ensure proper compatibility with any aftermarket strap.

Which strap material works best with the TAG Heuer Aquaracer CAP2111B.A0833?

Selection depends on intended use and aesthetic preference. An alligator strap with vegetable tanning offers timeless elegance with a natural patina that develops over time. Shell cordovan provides unmatched colour depth and works equally well in formal and casual settings. Unlined calf leather ensures maximum flexibility and wrist comfort. For serious aquatic activities, a NATO strap in canvas or vulcanised rubber remains the most reliable and functional choice.

How do I change the strap on a TAG Heuer Aquaracer CAP2111B.A0833?

The Aquaracer CAP2111B.A0833 features riveted lugs. Strap replacement requires removal of the riveted pins using a professional strap tool or by consulting a qualified watchmaker. Once the pins are removed, the new 20mm lug-width strap can be inserted and secured with new pins. Never attempt this operation with improvised tools to avoid damaging the case.

Can I use aftermarket straps with the TAG Heuer Aquaracer CAP2111B.A0833?

Yes, the TAG Heuer Aquaracer CAP2111B.A0833 with its 20mm lug width is compatible with any artisanal strap of matching 20mm lug width. Milano Straps offers an extensive collection of customisable 20mm straps in leather (alligator, cordovan, calf), technical materials and NATO options. Professional installation by a qualified watchmaker is recommended to ensure correct mounting without case damage.

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

Strap longevity depends on material and usage patterns. An alligator or cordovan strap with vegetable tanning can last 5-8 years with moderate daily wear, developing a captivating patina. Unlined calf leather has a slightly shorter lifespan (3-5 years) due to increased flexibility and moisture exposure. Frequent water exposure or direct UV sunlight accelerates wear. The Casati Milano atelier provides an 18-month warranty on all straps and offers repair and replacement services to maintain your Aquaracer's aesthetic value.

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