TAG Heuer · Carrera

Strap for Carrera Chronograph Glass Box Expo 2025 Osaka

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter39 mm
ReferenceCBS221C.FC6619 (aka: 2025年日本国際博覧会)
FamilyCarrera
MovementTAG Heuer caliber TH20-00 hours, minutes, small seconds | date | Chronograph, column wheel
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 CBS221C.FC6619 (aka: 2025年日本国際博覧会)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Carrera CBS221C.FC6619 (aka: 2025年日本国際博覧会), seen from the bench

The TAG Heuer Carrera CBS221C.FC6619 chronograph celebrates the 2025 Osaka Universal Exposition, blending the collection's sporting heritage with TAG Heuer's innovation since 1860. Born in 1963 as a professional pilots' chronograph, the Carrera evolves with minimalist Japanese design and fluid lines. The 39mm stainless steel case features an integrated brushed bracelet as a monolithic construction. It houses the TAG Heuer TH20-00 calibre column-wheel chronograph movement with hours, minutes, small seconds, date, and chronograph functions. The 20mm lug width accommodates standard strap options for this contemporary mid-size segment.

Frequently asked questions

What is the lug width of the TAG Heuer Carrera CBS221C.FC6619?

The TAG Heuer Carrera CBS221C.FC6619 features a lug width of 20mm. This measurement represents the space between the case lugs where the strap is inserted. To verify with precision, measure internally using a calliper: 20mm ensures compatibility with standard commercial straps, though a tolerance of ±0.5mm is common among manufacturers. For perfect insertion, we recommend accurate measurement before purchase.

Which strap is recommended for the CBS221C.FC6619?

For the CBS221C.FC6619 we recommend straps in black or dark brown alligator for formal occasions, vegetable-tanned calf leather for a vintage-sport look, or shell cordovan for those seeking understated luxury. Given the brushed steel case, materials with pronounced texture create elegant contrast. For daily wear and sports use, nylon NATO or rubber with leather lugs offer practicality without sacrificing aesthetics. Your choice depends on occasion and the degree of patina desired over time.

How do I change the strap on my TAG Heuer Carrera CBS221C.FC6619?

Strap replacement requires a specific tool called a spring bar tool. Position the watch with one lug facing downwards, insert the tool into the lateral hole next to the spring bar and exert gentle pressure to free it. Repeat for the other lug. Reverse the procedure to install the new strap, ensuring the spring bar is fully seated. If you are not confident, contact the Casati Milano atelier for professional replacement.

Is the CBS221C.FC6619 compatible with quality aftermarket straps?

Yes, the CBS221C.FC6619 is fully compatible with quality aftermarket straps, provided they respect the 20mm lug width. Milano Straps offers a dedicated collection of artisanal 20mm straps in various leathers and finishes. The important thing is to verify that the lugs fit snugly to the case without play or friction. Custom straps from Casati Milano guarantee maximum compatibility and durability, with an 18-month warranty.

What is the average lifespan of a leather strap for this watch?

A premium leather strap, such as alligator or shell cordovan, with moderate daily use, lasts approximately 3-5 years before requiring replacement. This estimate varies based on sun exposure, humidity, sweat and frequency of use. Vegetable-tanned leathers develop patina and may last longer if well maintained. Synthetic materials such as rubber and nylon resist wear longer but lose elasticity over time. The 18-month warranty from Casati Milano covers manufacturing defects and ensures construction quality for years of worry-free use.

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