TAG Heuer · Formula 1

Strap for Formula 1 Quartz Chronograph 41 Stainless Steel / 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 diameter41 mm
ReferenceCAH1110.BT0714 (aka: CAH1110BT0714, CAH1110)
FamilyFormula 1
MovementETA caliber G10.711 hours, minutes, small seconds | date | Chronograph, Rattrapante
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 CAH1110.BT0714 (aka: CAH1110BT0714, CAH1110)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Formula 1 CAH1110.BT0714 (aka: CAH1110BT0714, CAH1110), seen from the bench

The TAG Heuer Formula 1 reference CAH1110.BT0714 is powered by the ETA G10.711 quartz caliber with chronograph and split-seconds functions. The watch features hours, minutes, small seconds, date and a chronograph with intermediate time measurement capability. It is part of the Formula 1 collection dedicated to motorsport.

Frequently asked questions

What is the lug width of the TAG Heuer Formula 1 CAH1110.BT0714?

The lug width of the TAG Heuer Formula 1 CAH1110.BT0714 is 20mm. This measurement is standard for chronographs in this case size (41mm) and allows you to fit aftermarket straps specifically dimensioned for this reference. To verify compatibility, measure the distance between the spring bar attachments using a digital calliper: it must measure exactly 20mm.

What is the best strap for the TAG Heuer Formula 1 CAH1110.BT0714?

The choice depends on your intended use. For formal elegance, we recommend polished black alligator or fine-grained calf. For daily versatility, shell cordovan offers exceptional durability and develops a unique patina over time. For sporting activities or frequent immersion, an FKM rubber strap or a Cordura NATO provides practicality and security. Milano Straps offers customisable options with vegetable tanning and stainless steel deployante clasp.

How do you change the strap on the TAG Heuer Formula 1 CAH1110.BT0714?

Strap replacement is performed by removing the lateral spring bars from the lower and upper lug using a spring bar tool. For the CAH1110.BT0714, position the tool at the spring bar location, apply slight downward pressure to insert the new 20mm-wide strap, then verify that the pins are correctly seated in both attachments. The procedure takes only a few minutes and requires no specialised tools.

Is an aftermarket strap compatible with the TAG Heuer Formula 1 CAH1110.BT0714?

Yes, provided the strap is specifically dimensioned for a 20mm lug width. High-quality artisanal aftermarket straps, such as those offered by Milano Straps, guarantee compatibility and comfort identical to original TAG Heuer straps, with the advantage of choosing premium materials (alligator, shell cordovan, vegetable-tanned leather) and aesthetic customisations. The fit must be tested on the wrist to avoid lateral flexing.

What is the lifespan of a leather strap for the TAG Heuer Formula 1 CAH1110.BT0714?

Lifespan depends on material and maintenance. An alligator or calf strap with vegetable tanning typically lasts 3-5 years of daily wear before replacement is needed. Shell cordovan, thanks to the density of horse leather, can last 7-10 years or beyond. Periodic maintenance with natural balms significantly prolongs useful life. Casati Milano provides an 18-month warranty on all bespoke straps, covering manufacturing defects and stitching failure.

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