TAG Heuer · Formula 1

Strap for Formula 1 Chronograph Quartz 41 Stainless Steel / Diamond / 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 diameter41 mm
ReferenceCAH1212.BA0862 (aka: CAH1212BA0862, CAH1212)
FamilyFormula 1
MovementRonda caliber 5021.D hours, minutes, small seconds | date | Chronograph
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 Formula 1 CAH1212.BA0862 (aka: CAH1212BA0862, CAH1212)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Formula 1 CAH1212.BA0862 (aka: CAH1212BA0862, CAH1212), seen from the bench

The Formula 1 represents TAG Heuer's sports line dedicated to the world of motorsports. The reference CAH1212.BA0862 features the Ronda 5021.D quartz movement with hours, minutes, small seconds, date, and chronograph functions. The model integrates the technical characteristics typical of racing watches with an analog-digital display.

Frequently asked questions

What is the lug width of the TAG Heuer Formula 1 CAH1212.BA0862?

The TAG Heuer Formula 1 CAH1212.BA0862 features a lug width of 20 millimetres. This measurement represents the distance between the lugs that hold the strap and determines compatibility with aftermarket straps. It is essential to verify this dimension before purchasing a replacement strap to ensure precise fitting without forcing.

Which strap is recommended for the TAG Heuer Formula 1 CAH1212.BA0862?

For the CAH1212.BA0862, we recommend a black alligator strap with vegetable tanning or dark calf leather with satin finishing. Alligator offers aesthetic refinement and durability, perfectly aligned with the technical precision of the ceramic case. Alternatively, technical rubber straps deliver exceptional performance, ideal for high-intensity environments, whilst NATO straps provide a sporty aesthetic consistent with the model's racing heritage.

How do you change the strap on the TAG Heuer Formula 1 CAH1212.BA0862?

Changing the strap requires a spring bar tool (a specialist instrument for removing the lugs). Position the tool in the lateral slots on the case, apply gentle pressure to compress the internal spring, and extract the pin. Repeat on the other side, then insert the new strap's pins into the same holes, ensuring they are properly positioned and secured. If you are unfamiliar with this procedure, consult a specialist atelier such as Casati Milano.

Is there an aftermarket strap compatible with the TAG Heuer Formula 1 CAH1212.BA0862?

Yes, milanostraps.it offers a complete collection of 20-millimetre aftermarket straps specifically compatible with the CAH1212.BA0862. Every strap is available in various materials (alligator, calf leather, rubber, NATO) and can be customised in length, initials, and stitching thread colour. Casati Milano's atelier further provides bespoke straps created to measure according to aesthetic preferences and specific functional requirements.

How long does a leather strap last on the TAG Heuer Formula 1 CAH1212.BA0862?

The lifespan of a leather strap depends on the material and frequency of use. An alligator strap with vegetable tanning, if worn regularly, maintains structural integrity for 3–4 years, developing a patina that enhances its character. Calf leather offers similar longevity, with variations depending on leather quality and treatment. A technical rubber strap provides superior durability, lasting 5–6 years, thanks to the material's inherent resistance. Regular maintenance with specialist products significantly prolongs the strap's life.

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