Milano Straps
← TAG HeuerSearchCart
Menu

TAG Heuer · Formula 1

Strap for Formula 1 Chronograph Quartz 43 Oracle Red Bull Racing

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

18mm
18 mm strapsAll TAG Heuer
Lug width18 mm
Case diameter43 mm
ReferenceCAZ101AZ.FT8090
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

View →

The Formula 1 CAZ101AZ.FT8090, seen from the bench

The TAG Heuer Formula 1 Chronograph Quartz CAZ101AZ.FT8090 is a 43mm stainless steel sports chronograph launched in 1986, embodying the brand's racing heritage through squared lines and professional robustness. It houses the Ronda caliber 5040.D quartz movement, managing hours, minutes, small seconds, date, and chronograph functions. The case features brushed and polished finishes with sapphire crystal and anti-reflective coating. The lug width is 18mm, a standard measurement for mid-to-high-class chronographs of this case diameter.

Frequently asked questions

What is the lug width of the TAG Heuer Formula 1 CAZ101AZ.FT8090?

The lug width of the TAG Heuer Formula 1 CAZ101AZ.FT8090 is 18mm. This measurement is determined by the geometry of the case lugs and remains constant across all variants of this reference. To verify the measurement correctly, measure the internal distance between the lug poles where the strap or bracelet is inserted via the spring bars.

What is the best strap for the TAG Heuer Formula 1 CAZ101AZ.FT8090?

The best strap depends on your intended use. For an elegant-sporty approach, alligator in dark brown or black is the luxury choice that emphasises the racing character. Vegetable-tanned calf offers greater versatility and develops a patina over time. For water-based activities, shell cordovan resists moisture better. FKM rubber straps are the most practical solution for extreme environments. Milano Straps offers 18mm straps customisable in leather, length and details.

How do you change the strap on a TAG Heuer Formula 1 CAZ101AZ.FT8090?

To change the strap you will need a spring bar tool and a small magnifying glass. With the watch case resting on a soft cloth, insert the tool tip into the small side slots of the spring bar, press gently to compress the internal spring and extract the bar from the lug hole. Next, insert the new strap, aligning the holes with the spring bars and reinserting the bars. If you lack experience, we recommend consulting a professional.

Which aftermarket strap is compatible with the TAG Heuer Formula 1 CAZ101AZ.FT8090?

Any strap with an exactly 18mm lug width is compatible with the CAZ101AZ.FT8090, regardless of the manufacturer's brand. Milano Straps offers a specialised catalogue of 18mm straps in leather, alligator, shell cordovan and rubber, all tested and customisable. Compatibility is guaranteed by lug width, not by specific brands.

How long does a leather strap last on a TAG Heuer Formula 1 CAZ101AZ.FT8090?

The lifespan of a leather strap varies depending on material, use and maintenance. A calf strap with vegetable tanning typically lasts 2-4 years with regular use; alligator, being denser, reaches 4-6 years. Shell cordovan can exceed 6-8 years. Moisture and sun exposure accelerate wear. Regular maintenance (gentle cleaning, drying) extends useful life. Milano Straps offers an 18-month warranty on all custom-made straps.

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only