Cartier
Tank WGTA0091— lug 16mm

The Cartier Tank WGTA0091 has a 16mm strap width. This measurement is specific to the feminine/unisex versions of the Tank collection and is determined by the internal space between the vertical lugs of the case. Measuring with a caliper is essential to avoid compatibility errors: an 18mm strap will not fit, while a 14mm strap will leave gaps that compromise the elegance of the construction.

Black alligator represents the absolute formal choice thanks to its natural geometric grain that dialogues perfectly with the rectangular case. Alternatively, cognac or brown-tobacco taurine calf offers organic warmth and a patina that develops over the years. For a more sporty aesthetic, cotton or silk NATO maintains aesthetic rigor. Avoid decorated straps or those with ornamental stitching: the Tank requires total minimalism in constructive detail.

The Tank WGTA0091 has integrated lugs in the case. To replace the strap, you must extract the spring bars (small bars) that connect the leather to the case. Use a dedicated tool (spring bar tool) to release the horizontal pins and separate them from the vertical guides. It is recommended to entrust this operation to a qualified watchmaker to avoid damage to the yellow gold case, especially if you wish to preserve the original patina.

No, it is essential to choose a 16mm strap specifically engineered for this case. Generic or approximate straps do not respect the constructive tolerances that Cartier has engineered. Milano Straps offers 16mm straps compatible with specific attention to Tank proportions, customizable in leather, thread color and initials. The Casati Milano atelier also provides bespoke straps with an 18-month warranty.

Durability depends on the material and use. Quality alligator, properly treated, develops patina for 4-6 years if worn daily; noble taurine calf wears faster (2-3 years with intensive use) but acquires organic character. Noble leathers—alligator, crocodile, python—age better and maintain structure. Periodic maintenance and alternating with other straps significantly extends lifespan. Milano Straps guarantees 18 months on their artisanal straps, covering defects in construction and material.