TAG Heuer · Formula 1

Strap for Formula 1 Chronograph Quartz 43 Stainless Steel / Red Bull / NATO

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
ReferenceCAZ1018.FC8213
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

Straps for the Formula 1 CAZ1018.FC8213

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Formula 1 CAZ1018.FC8213, seen from the bench

The TAG Heuer Formula 1 CAZ1018.FC8213 is a 43 mm stainless steel chronograph featuring a Ronda 5040.D quartz movement with chronographic counter, small seconds at 6 o'clock, and date window at 3 o'clock. The 20 mm lug width accommodates aftermarket straps and is proportioned for medium to wide wrists. Water resistant to 200 meters, the satin and polished steel case maintains the brand's sports tool watch aesthetic with aggressive geometry, rotating tachymetric bezel, and integrated bracelet.

Frequently asked questions

What is the correct lug width for the TAG Heuer Formula 1 CAZ1018.FC8213?

The lug width of the TAG Heuer Formula 1 CAZ1018.FC8213 is 20 millimetres. This measurement represents the distance between the two horizontal lugs that hold the strap. All compatible straps must respect this dimension to fit without force and ensure proper closure tension.

What is the best strap to pair with the TAG Heuer Formula 1 CAZ1018.FC8213?

The choice depends on primary use: for daily wear, we recommend vegetable-tanned calf leather (natural brown or black) for its noble patina and grip. For aquatic and sports environments, an FKM rubber strap preserves steel and guarantees durability. For formal occasions, a two-tone alligator or burgundy elevates the aesthetic without weighing down the chronograph.

How do you change the strap on the TAG Heuer Formula 1 CAZ1018.FC8213?

The change is straightforward: position the watch with the caseback facing upward, locate the two lugs. Using a spring bar tool (small screwdriver with grooves), push the pin from underneath outward to release the lateral springs; the old strap detaches. Insert the new 20mm strap, align the pin and press until you hear the springs click. Verify that the strap is firmly secured before wearing the watch.

Are aftermarket 20mm straps truly compatible with the CAZ1018.FC8213?

Yes, completely. Any strap with a 20mm lug width (confirmed by the manufacturer) fits perfectly on the TAG Heuer Formula 1. Artisanal straps from Milano Straps, crafted to international compatibility standards, insert without play and maintain the aesthetic integrity of the case. The 18-month warranty on bespoke creations ensures construction quality and longevity.

What is the average lifespan of a leather strap for this chronograph?

A high-quality calf leather strap, used daily, lasts 18-24 months before showing significant wear (micro-tears, loss of lustre). Alligator leather, being denser, reaches 30-36 months. Vegetable tanning develops a protective patina over time, extending resistance. Wear accelerates if exposed to perspiration, constant fresh water, or direct UV rays. FKM rubber straps exceed 5 years without colour degradation.

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