Strap for Grand Carrera Calibre 17 RS2 43 PVD / Black / Alligator

The TAG Heuer Grand Carrera CAV518B.FC6237 features 20mm lugs, a standard that reflects the proportion of the 43mm case. Lug width is determined by measuring the perpendicular distance between the two horizontal pins that secure the strap. For the CAV518B.FC6237, this dimension is critical to ensure compatibility with aftermarket artisanal straps without requiring construction modifications.

The ideal strap depends on intended usage and aesthetic preferences. For formal elegance, a dark natural alligator deepens the dial's sophistication. For daily versatility, warm-toned calf or navy alligator balance sportiness and refinement. Shell Cordovan represents the choice for those prioritising durability without sacrificing artisanal character. For dynamic contexts, a high-tenacity polyamide NATO strap ensures practicality whilst maintaining elegant proportions.

To replace the strap, use a spring bar removal tool and proceed carefully to avoid damaging the lugs. The spring bars of the CAV518B.FC6237 extract perpendicular to the case, freeing the original bracelet. Once the bars are removed, the new 20mm strap is inserted by aligning the holes with the lugs, then the spring bars are reinserted with uniform pressure. To preserve construction geometry, it is advisable to have the operation performed by a specialised atelier.

Yes, any artisanal strap with 20mm lug width is compatible with the CAV518B.FC6237. Aftermarket straps allow you to expand the watch's aesthetic possibilities without construction compromises. At Milano Straps you will find a selection of artisanal 20mm straps in alligator, Shell Cordovan, calf and elastomeric materials, customisable in sizes, initials and stitching thread.

The durability of a leather strap depends on leather quality, usage and maintenance. Artisanal-grade alligator or Shell Cordovan resists 5-10 years of moderate-to-intensive use, developing characteristic patina over time. Boxcalf has slightly lower durability, typically 3-6 years under daily use conditions. To extend strap life, avoid prolonged moisture exposure and clean periodically with leather-specific products. At Casati Milano, all custom straps include an 18-month warranty.