TAG Heuer · Carrera

Strap for Carrera Astronomer Stainless Steel / Grey

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter39 mm
ReferenceWBX2112.FC6615
FamilyCarrera
MovementTAG Heuer caliber 7 moonphase hours, minutes, seconds | date | moonphase
Year2025
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 Carrera WBX2112.FC6615

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Carrera WBX2112.FC6615, seen from the bench

The TAG Heuer Carrera WBX2112.FC6615 is a 39mm stainless steel chronograph that evolves the iconic sports timing collection launched in 1963. Powered by the TAG Heuer Calibre 7 movement, it features moon phase and date complications alongside essential timekeeping functions. The 316L stainless steel case offers water resistance for versatile daily wear, and the 21mm lug width accommodates aftermarket straps proportionally to this generation's balanced design.

Frequently asked questions

What is the lug width of the TAG Heuer Carrera WBX2112.FC6615?

The TAG Heuer Carrera WBX2112.FC6615 is equipped with a 21mm lug width. This measurement is the TAG Heuer standard for Carrera models of this generation and is essential for compatibility with any aftermarket strap. Lug width is measured as the internal distance from one side of the case to the other, excluding any protrusions: verifying this dimension is the first step before ordering a replacement strap.

Which strap material is best suited for the TAG Heuer Carrera WBX2112.FC6615?

The choice depends on intended use and desired aesthetics. For pure elegance, dark brown or black alligator dialogues perfectly with the stainless steel case. Vegetable-tanned calf develops a natural patina over time, narrating the history of wear. NATO cotton is ideal for sporty and casual contexts, offering wide chromatic versatility. Vulcanised rubber ensures secure grip and represents the most technical choice. Each material transforms the WBX2112.FC6615 into a different version of the same icon.

How do I change the strap on my TAG Heuer WBX2112.FC6615?

Removing the original strap from the WBX2112.FC6615 requires a specific tool: a spring bar tool (lug spatula). Insert the tip of the tool into the narrow opening between the lug and the strap, then gently push downward to release the internal spring that secures the strap. Repeat on the other side. Proceed in reverse to mount the new strap, ensuring the passant is perfectly aligned with the 21mm lug and that the strap adheres completely without gaps.

Can I use an aftermarket strap on a TAG Heuer WBX2112.FC6615?

Yes, provided the strap is compatible with the 21mm lug width. Artisanal aftermarket straps, such as those offered by Casati Milano and MilanoStraps, frequently offer superior quality compared to original straps, with choice of noble leathers (alligator, vegetable-tanned calf, shell cordovan) and custom finishes. An aftermarket strap completely transforms the aesthetic of the watch, allowing you to adapt the WBX2112.FC6615 to different contexts without changing the timepiece.

How long does a leather strap last on a TAG Heuer WBX2112.FC6615?

The lifespan of a leather strap depends on material quality, usage patterns, and maintenance. An artisanal strap in alligator or shell cordovan, crafted from vegetable-tanned leather, typically lasts 3–5 years of daily wear, developing a natural patina that increases aesthetic value. Vegetable-tanned calf has similar durability but develops a more pronounced patina. Factors such as humidity, direct sunlight exposure, and perspiration accelerate wear. Casati Milano's 18-month warranty covers manufacturing defects and stitching, whilst natural wear is physiological and part of the watch's narrative.

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