Cartier
Tank WGTA0042— lug 18mm

The lug width of the Cartier Tank WGTA0042 is 18 millimetres. This measurement is historically standard for the Tank in this case size (26.10 mm) and ensures the balanced proportions typical of Cartier's design geometry. To verify it, position a digital caliper or ruler on the internal surface of the lug where the strap attaches to the case.

Black or brown alligator is the classic choice for a platinum Tank: the regular grain and deep color pair naturally with polished platinum. For versatility, fine-grain calfskin in caramel brown tones develops a golden patina over time. If you want a contemporary sporty element, titanium grey rubber amplifies modernity while maintaining formal elegance.

The Tank uses an integrated attachment with fixed lugs. To replace the strap, specialized tools are required: the procedure demands the intervention of a skilled watchmaker or authorized service center. Milano Straps recommends contacting Casati Milano – atelier sartoriale – for professional replacement with an 18-month warranty on the new strap.

Yes, absolutely. A custom strap made by a qualified craftsman is the ideal solution for the Tank: this is not adaptation but a continuation of the watch's design geometry. Milano Straps offers online 18mm compatible straps personalizable in material, color, size and initials, or you can request a fully bespoke strap from Casati Milano.

A quality alligator or calfskin strap on a platinum Tank typically lasts 3-5 years with regular use, considering that the wrist and lug area are subject to continuous flexing. The standard Milano Straps warranty is 18 months; actual durability depends on frequency of use, care, and the type of leather. Alligator tends to last longer than calfskin due to its naturally more robust structure.