TAG Heuer · Formula 1

Strap for Formula 1 x Senna

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

Lug width20 mm
Case diameter43 mm
ReferenceCAZ201B.FC6487
FamilyFormula 1
MovementTAG Heuer caliber 16 hours, minutes, small seconds | date | Chronograph
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 Formula 1 CAZ201B.FC6487

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Formula 1 CAZ201B.FC6487, seen from the bench

The TAG Heuer Formula 1 CAZ201B.FC6487 is a sports chronograph featuring a 43mm stainless steel and black ceramic case with a tachymetric bezel and water resistance to 300 meters. It houses the TAG Heuer Calibre 16 automatic movement, a column-wheel chronograph with hours, minutes, small seconds, and date display, offering ±5 seconds per day accuracy and approximately 42 hours power reserve. The 20mm lug width accommodates compatible straps designed for this case geometry.

Frequently asked questions

What is the lug width of the TAG Heuer Formula 1 CAZ201B.FC6487?

The TAG Heuer Formula 1 CAZ201B.FC6487 features a lug width of 20 millimetres. This measurement is determined by the 43mm case geometry and ensures proper compatibility with standard 20mm straps. Measuring the distance between the centre points of the attachment pins is essential to verify correct strap fitment.

Which strap is best suited for the TAG Heuer Formula 1 CAZ201B.FC6487?

The ideal strap for this model depends on intended usage. Alligator leather in dark brown or black with vegetable tanning enhances sporting elegance; shell cordovan provides extraordinary durability; supple calf leather offers comfort and versatility. For aquatic conditions, rubber or Cordura canvas is the functional choice. Ensure the lug width is 20mm and that the strap lugs conform to the case curvature.

How do you change the strap on a TAG Heuer Formula 1 CAZ201B.FC6487?

Strap removal is accomplished by extracting the lateral case pins using a spring bar tool. Gently compress the spring mechanism to extract the pin from its housing. Insert the pin into the new strap (confirming the lug width is 20mm) and push firmly until the safety click is felt. Exercise caution during this operation to prevent case damage.

Is the TAG Heuer Formula 1 CAZ201B.FC6487 compatible with aftermarket straps?

Yes, the CAZ201B.FC6487 is fully compatible with quality aftermarket straps provided they respect the 20mm lug width and feature appropriate pin thickness. Italian artisan leather straps, crafted from alligator, cordovan or calf, deliver superior aesthetics and durability compared to standard alternatives. Always verify exact measurements before purchase.

What is the typical lifespan of a leather strap on a TAG Heuer Formula 1?

Leather strap longevity depends on material type and usage patterns. Vegetable-tanned alligator can endure 5–8 years with moderate daily wear; shell cordovan frequently exceeds 10 years owing to leather density and robustness. Standard calf leather maintains good condition for 4–6 years. Exposure to water, humidity and perspiration reduces lifespan. Regular maintenance (cleaning and conditioning) substantially extends strap 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