TAG Heuer · Formula 1

Strap for Formula 1 Quartz Chronograph 42 PVD / Black / Rubber

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

Lug width20 mm
Case diameter42 mm
ReferenceCAU111A.FT6024 (aka: CAU111AFT6024, CAU111A)
FamilyFormula 1
MovementRonda caliber 5040.D hours, minutes, small seconds | date | Chronograph
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 CAU111A.FT6024 (aka: CAU111AFT6024, CAU111A)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Formula 1 CAU111A.FT6024 (aka: CAU111AFT6024, CAU111A), seen from the bench

The TAG Heuer Formula 1 CAU111A.FT6024 is a 42mm stainless steel sports chronograph with a unidirectional rotating bezel, sapphire crystal, and water resistance to 300 meters. It features a Swiss Ronda caliber 5040.D quartz movement certified COSC, with chronograph function precise to 1/10 of a second and date display. The 20mm lug width accommodates compatible straps, maintaining visual balance with the aggressive satin and polished case finishing.

Frequently asked questions

What is the lug width of the TAG Heuer Formula 1 CAU111A.FT6024?

The lug width (ansa) of the TAG Heuer Formula 1 CAU111A.FT6024 is 20mm. This dimension represents the distance between the two lugs where the strap attaches to the case. To verify compatibility, measure the perpendicular distance between the two spring bars using a calliper or flexible ruler, excluding the case shoulder.

What is the best strap for the TAG Heuer Formula 1 CAU111A.FT6024?

The optimal choice depends on intended use. For formal contexts, an alligator strap in black with contrasting stitching or a cognac shell cordovan elevate elegance whilst maintaining sporting character. For daily wear, a vegetable-tanned calf leather in medium brown develops natural patina over time. For practicality and versatility, a ballistic nylon NATO in navy blue or anthracite grey ensures comfort and quick interchangeability.

How do I change the strap on the TAG Heuer Formula 1 CAU111A.FT6024?

Changing the strap requires two tools: a spring bar tool and well-lit workspace. Locate the two lateral spring bars securing the strap to the case. Gently insert the spring bar tool into the gap between the case and strap, lift the spring bar from its housing, and slide the strap out. Repeat on the opposite side. To install the new 20mm strap, align the strap holes with the case lugs and press gently until you hear a click.

Can I use an aftermarket compatible strap on the TAG Heuer Formula 1 CAU111A.FT6024?

Yes, any strap with a 20mm lug width is fully compatible with the CAU111A.FT6024. Quality aftermarket straps in alligator, vegetable-tanned calf, shell cordovan, NATO, or FKM rubber meet the same technical specifications as the original bracelet. It is essential to choose a reliable supplier that certifies the lug width and compatibility with standard spring bars.

How long does a leather strap last on the TAG Heuer Formula 1 CAU111A.FT6024?

The lifespan of a leather strap depends on material and usage intensity. Quality alligator resists 3-5 years under moderate daily wear. Shell cordovan, owing to its natural density, can endure 5-8 years. Vegetable-tanned calf varies between 2-4 years. FKM rubber straps extend to 6-7 years. Regular exposure to moisture, intense heat, and impacts accelerates wear, whilst proper storage and periodic cleaning significantly extend longevity.

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