TAG Heuer · Formula 1

Strap for Formula 1 Quartz 37 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 diameter37 mm
ReferenceWAH1217BA0859
FamilyFormula 1
MovementETA caliber F05.111 Hours, Minutes, Seconds | Date
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 WAH1217BA0859

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Formula 1 WAH1217BA0859, seen from the bench

The TAG Heuer Formula 1 WAH1217BA0859 is equipped with the ETA F05.111 quartz caliber with hour, minute, second and date indication. The movement offers quartz precision with essential functions for daily use. The Formula 1 collection represents the brand's sporty entry-level.

Frequently asked questions

What is the lug width of the TAG Heuer Formula 1 WAH1217BA0859?

The TAG Heuer Formula 1 WAH1217BA0859 features a 20mm lug width, a standardised measurement that ensures compatibility with most aftermarket straps. Lug width is measured between the metal springs protruding from the case where the strap attaches. Always verify measurement precision before purchasing a replacement strap, as even minor variations would compromise proper fit and security.

What is the best strap for the TAG Heuer Formula 1 WAH1217BA0859?

Selection depends on intended use and aesthetic preference. For formal occasions, tropical alligator or shell cordovan enhance elegance whilst maintaining sportive character. For daily wear, vegetable-tanned calf leather develops natural patina and exceptional durability. For humid environments or sports activities, synthetic rubber or NATO fabric offer practicality and low maintenance. Each material narrates a distinct story on the wrist.

How do I change the strap on the TAG Heuer Formula 1 WAH1217BA0859?

The WAH1217BA0859 utilises straight spring bar lugs of 20mm. Secure the watch on a soft surface. Locate the small ejection hole adjacent to each lug and insert a spring bar tool (double-curved implement) into the aperture, gently pressing to compress the internal spring. Once compressed, extract the lug from the case. Repeat on the opposite side. Insert the new strap lugs by reversing the procedure, ensuring the spring mechanism is fully seated.

Can I use an aftermarket compatible strap on this TAG Heuer?

Yes, the WAH1217BA0859 accepts any strap with a 20mm lug width specification. Specialised manufacturers such as Milano Straps provide straps in alligator, calf, shell cordovan and rubber, all customisable in dimensions and finishes. Utilising aftermarket straps does not compromise watch warranty and substantially extends the chronograph's stylistic versatility throughout its lifetime.

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

Longevity varies according to material and usage intensity. Vegetable-tanned calf leather withstands 18-24 months of daily wear, developing natural patina. Shell cordovan, denser in construction, achieves 36-48 months. Tropical alligator lasts 24-36 months. Synthetic rubber exceeds 3-4 years. Milano Straps guarantees 18 months on bespoke Casati straps, with replacement or restoration available. Regular maintenance—cleaning with damp soft cloth—substantially extends lifespan.

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