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TAG Heuer · Formula 1

Strap for Formula 1 Chronograph Quartz 43 Stainless Steel /

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

Lug width

20mm
20 mm strapsAll TAG Heuer
Lug width20 mm
Case diameter43 mm
ReferenceCAZ1014.BA0842
FamilyFormula 1
MovementRonda caliber 5040.D hours, minutes, small seconds | date | Chronograph
Year2016
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

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Straps for the Formula 1 CAZ1014.BA0842

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Formula 1 CAZ1014.BA0842, seen from the bench

The TAG Heuer Formula 1 CAZ1014.BA0842 is a modern evolution of an icon born in the 1980s, featuring Swiss engineering in a 43mm stainless steel case. This sports chronograph houses the Ronda caliber 5040.D movement, managing hours, minutes, small seconds, date display, and chronograph function. The watch has a 20mm lug width, an intermediate measurement that provides excellent versatility for aftermarket strap options while maintaining harmonious proportions with the substantial case diameter.

Frequently asked questions

What is the lug width of the TAG Heuer Formula 1 CAZ1014.BA0842?

The TAG Heuer Formula 1 CAZ1014.BA0842 features a lug width of 20 millimetres. This specification is critical for strap compatibility: it must be verified precisely before purchasing any aftermarket strap. The measurement is taken between the two inner holes of the lug from the inside of the case.

Which strap is most suitable for the TAG Heuer Formula 1 CAZ1014.BA0842?

For the CAZ1014.BA0842, alligator leather straps in deep black or brown are recommended, emphasising the sports-oriented identity whilst maintaining elegance. An alternative is shell cordovan, which develops patina over time. For intensive daily wear, vegetable-tanned calf leather offers softness and durability. Vulcanised rubber remains ideal for nautical or extreme sports contexts.

How do I change the strap on the TAG Heuer Formula 1 CAZ1014.BA0842?

To change the strap on the CAZ1014.BA0842, the original integrated bracelet must be removed (an operation recommended at a professional watchmaker) and the new 20mm strap installed via the spring bars. Atelier Casati Milano offers bespoke installation service with guaranteed precision.

What is the difference between a generic aftermarket strap and an artisanal one for the CAZ1014?

Artisanal aftermarket straps, such as those from Milano Straps, guarantee manual selection of leathers (alligator, shell cordovan, calf), bespoke stitching with thread choice, personalised sizing and qualitative follow-up. An economical generic strap often employs composite leather or uniform industrial stitching, compromising longevity and aesthetics.

How long does a leather strap last on the TAG Heuer Formula 1 CAZ1014.BA0842?

A quality artisanal leather strap, with alligator or shell cordovan, withstands 3–5 years under normal daily wear conditions. Durability depends on humidity exposure, frequency of use and maintenance. Milano Straps guarantees 18 months on the strap. Shell cordovan, being denser, typically outlasts traditional calf leather.

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