TAG Heuer · Formula 1

Strap for Formula 1 Quartz 41 Stainless Steel / 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 diameter41 mm
ReferenceWAH1110.BA0858 (aka: WAH1110BA0858, WAH1110)
FamilyFormula 1
MovementETA caliber F06.111 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 WAH1110.BA0858 (aka: WAH1110BA0858, WAH1110)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Formula 1 WAH1110.BA0858 (aka: WAH1110BA0858, WAH1110), seen from the bench

The TAG Heuer Formula 1 WAH1110.BA0858 is a sports chronograph with a 41 mm stainless steel case and ETA F06.111 quartz movement. It features a unidirectional rotating bezel, high-contrast dial with luminous hands, and a 20 mm lug width for strap compatibility. The sapphire crystal and water resistance deliver operational robustness for daily wear.

Frequently asked questions

What is the lug width of the TAG Heuer Formula 1 WAH1110.BA0858?

The TAG Heuer Formula 1 WAH1110.BA0858 features a 20 mm lug width. This measurement refers to the internal distance between the lug tips, measured edge to edge. It is a standard dimension for mid-to-large chronographs and ensures compatibility with a vast range of artisanal 20mm straps available online and through the Casati Milano atelier.

Which strap is best for the TAG Heuer Formula 1 WAH1110.BA0858?

There is no single 'best' choice, but optimal selections based on context. Polished black alligator delivers formal elegance whilst retaining sporting identity. Brown vegetable-tanned calf develops patina with time, becoming uniquely personal. A rubber strap maintains pure athleticism. Shell cordovan offers understated sophistication. The choice depends on the relationship between use (daily wear, formal occasions, water activities) and personal aesthetic preference.

How do I change the strap on my TAG Heuer Formula 1 WAH1110.BA0858?

Strap replacement requires a spring bar tool: gentle pressure is applied to each lug to release the spring mechanism and free the pin. Many watch owners can perform this at home; however, if you prefer to avoid any risk of damaging the case, the Casati Milano atelier offers a professional replacement service with direct consultation on material and sizing choices.

Can I use aftermarket-compatible straps with the TAG Heuer Formula 1 WAH1110.BA0858?

Absolutely. Any 20mm strap is physically compatible with this model. Milano Straps' artisanal straps are constructed with carefully selected leathers (alligator, calf, shell cordovan) and Swiss-standard stitching, offering superior quality compared to TAG Heuer OEM straps. The essential requirement is respecting the exact lug width and verifying that the strap accommodates standard lug pins.

How long does a leather strap last on a TAG Heuer Formula 1 WAH1110.BA0858?

Durability depends on material, usage, and maintenance. A quality artisanal alligator or calf strap, worn daily without prolonged exposure to heavy rain, retains structural integrity for 4–6 years. Natural leather develops patina and may exhibit signs of wear: this is not a defect, but part of the strap's aesthetic narrative. With periodic care (gentle cleaning, air drying), longevity extends significantly. The Casati Milano atelier guarantees 18 months on bespoke straps, covering manufacturing defects.

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