Strap for Carrera Calibre Heuer 02 45 Carbon / Skeleton / Rubber

The lug width of the CBG2A91.FT6173 is 20mm. This dimension is standard for 45mm Carrera models and ensures balanced proportions between the substantial case and the lug holes. Always verify the measurement stamped on the original bracelet before ordering a replacement strap.

For a 45mm sports chronograph, alligator with vegetable tanning represents the optimal balance between aesthetic refinement and durability. Shell cordovan is the choice for those seeking indestructibility and generational patina development. Calf leather in grain finish offers versatility. Avoid NATO and rubber: they fundamentally alter the dressy-sport identity toward utility.

Remove the original bracelet using a spring bar tool to unlock the pins from the lug holes. Install the new strap, verifying that the 20mm lug width is exact, and secure the pins with the tool. Do not force: if the strap does not slide smoothly, check the measurement. Adjustments require millimetre precision to avoid damage to the dial and case.

Yes, provided it is compatible with 20mm lug width and sourced from a reputable leather supplier. Aftermarket alligator or shell cordovan straps from certified tanneries offer resistance comparable to originals. Avoid unstructured products or weak stitching: the case weight demands robust material. Casati Milano crafts custom straps with geometric fitting for your specific wrist.

With moderate wear (3–4 days weekly), vegetable-tanned alligator resists 4–6 years; shell cordovan 8–10 years; calf leather 2–3 years. The 45mm case weight accelerates wear in flex zones. Rotating straps, avoiding water submersion and excessive perspiration extends lifespan. Once worn, the strap can be replaced whilst retaining a stainless steel deployant clasp—an investment that amortises future costs.