TAG Heuer · Formula 1
Strap for Formula 1 Big Date 44 Stainless Steel / Orange / Bracelet
Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Formula 1 WAH1012.BA0860 (aka: WAH1012BA0860, WAH1012)
Selected for the 20 mm lug width · workshop selection
Grey Hammered Leather Strap with Ecru Stitching€98
Hammered Calfskin Strap Light Blue€98
Hammered Calfskin Watch Strap Green with Ecru Stitching€98
Red Suede Strap with Stitching — Milano Straps€90
Dark Brown Calfskin Military Strap€80
The Formula 1 WAH1012.BA0860 (aka: WAH1012BA0860, WAH1012), seen from the bench
Frequently asked questions
What is the lug width of the TAG Heuer Formula 1 WAH1012.BA0860?
The lug width of the TAG Heuer Formula 1 WAH1012.BA0860 is 20mm. This measurement represents the distance between the spring bars connecting the strap to the case. Always verify with a digital calliper before ordering a new strap, measuring the gap between the two metal pins on the case.
Which strap is best for the TAG Heuer Formula 1 WAH1012.BA0860?
There is no single 'best' choice; it depends on intended use and aesthetic preference. For daily elegance: medium brown alligator or vegetable-tanned leather. For authentic sportiness: double-layer NATO in dark grey or navy blue. For aquatic and humid environments: black vulcanised rubber. Alligator develops noble patina over time, making it the choice that ages most gracefully.
How do you change the strap on a 20mm lug width watch?
Remove the watch from your wrist. Use a spring bar tool to depress the lateral pins holding the existing strap. Insert the tool's tip beneath the pin, press inward, and slide the strap outward. Insert the pin into your new 20mm strap and secure it in the case with the reverse movement: the pin clicks into position when fully inserted.
Is a 20mm aftermarket strap compatible with the TAG Heuer Formula 1 WAH1012.BA0860?
Yes, any 20mm strap is physically compatible with the WAH1012.BA0860. Lug width compatibility is standard. However, quality varies significantly: artisanal leather straps or European technical fabrics guarantee durability and predictable aging, unlike generic products. We recommend vegetable-tanned leather or certified alligator.
How long does a leather strap last on a watch like the TAG Heuer Formula 1 WAH1012.BA0860?
Durability depends on material and use. High-quality alligator withstands 3–5 years of daily wear with standard maintenance (cleaning, occasional conditioning). Vegetable-tanned calf leather lasts 2–4 years. Accelerating factors: frequent perspiration, prolonged UV exposure, constant humidity. Vulcanised rubber surpasses 5 years without visible degradation. A leather strap is not disposable: it ages and becomes ennobled, acquiring patina and character.
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
