TAG Heuer · Carrera

Strap for Carrera Calibre Heuer 02 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
ReferenceCBN2A1B.BA0643
FamilyCarrera
MovementTAG Heuer caliber Heuer 02 hours, minutes, small seconds | date | Chronograph, column wheel
Year2020
CaseCeramic, Stainless 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 Carrera CBN2A1B.BA0643

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Carrera CBN2A1B.BA0643, seen from the bench

The Carrera CBN2A1B.BA0643 is powered by the Heuer 02 automatic movement with column-wheel chronograph function. The movement offers hour, minute, small second, and date indications, as well as the chronograph function. The watch belongs to the Carrera collection of TAG Heuer, a line dedicated to motorsports.

Frequently asked questions

What is the lug width of the TAG Heuer Carrera CBN2A1B.BA0643?

The TAG Heuer Carrera CBN2A1B.BA0643 features a 20mm lug width. This measurement represents the contemporary standard for sports cases and ensures harmonic proportion on this 44mm case diameter. The measurement must be taken between the internal vertices of the spring bars, with a tolerance of ±0.5mm from the nominal value.

What is the best strap for the Carrera CBN2A1B.BA0643?

For this ceramic and steel reference, we recommend African alligator or vegetable-tanned calf leather with a reinforced underside layer. Alligator amplifies the visual contrast of the black ceramic through its distinct grain texture, whilst vegetable-tanned calf develops natural patina over time. Avoid synthetic rubber straps, which compromise the technical coherence of the Heuer 02 movement. For intensive use, consider shell cordovan with a stainless steel deployante clasp.

How do I replace the strap on a TAG Heuer Carrera?

Remove the strap by applying minimal pressure to the lateral spring bars using a spring bar tool sized for 20mm lugs, sliding the bar towards the case interior. Never use sharp implements that could scratch the ceramic. Once the original strap is removed, align the new strap's lug with the pivot pin and press firmly until you hear a distinct click indicating secure engagement. If the strap is bespoke, verify total length (lug + keeper) for wrists between 160 and 200mm circumference.

Can I fit an aftermarket 20mm strap on this Carrera?

Yes, any bespoke 20mm strap is 100% compatible. Verify total length (lug plus keeper) suits wrists between 160 and 200mm. The lug must slide into the case guides with minimal resistance and no lateral play. Alligator, calf, shell cordovan and vegetable-tanned leather of superior quality deliver better aesthetic result than standard factory straps. To ensure coherence with the Heuer 02 calibre, prefer straps fitted with 316L stainless steel deployante clasps.

How long does a leather strap last on a TAG Heuer Carrera?

A superior-quality vegetable-tanned leather strap lasts 18-36 months with moderate daily wear, depending on frequency of water and perspiration contact. Shell cordovan and African alligator ensure greater longevity, up to 48 months. The patina developing over time is desirable, not defective: it indicates natural absorption of oils and skin moisture. We recommend storing the strap in a dry environment, cleaning with a soft damp cloth, and applying vegetable balm every 6-12 months to maintain flexibility. Preventive replacement every 2 years allows you to appreciate the aesthetic change without risking sudden keeper rupture.

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.

Request an appointment →

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