Cartier
Tank WSTA0072— lug 18mm

The lug width of the Cartier Tank WSTA0072 is exactly 18 millimeters. This is the internal distance between the two pin receivers on the case, where the strap must be inserted. It is essential to always verify this measurement with a ruler or caliper before ordering a new strap, as an undersized lug would cause instability while an oversized one would not fit into the case.

For the WSTA0072 we recommend dark brown or cognac alligator with a steel deployant clasp – it represents the ideal balance between Cartier tradition and everyday versatility. Alternatively, black calf with platinum-finished details offers greater daily practicality. For a contemporary interpretation, anthracite gray Cordura canvas straps create an elegant dialogue with the square case without competing with it.

Strap replacement requires a specific tool to remove the hinge pins (the metal shafts that secure the strap to the lugs). Position the watch with the lug facing you, locate the small hole on the outer part of each lug and gently push the pin inward with a small screwdriver or punch. Once the pins are removed, the old strap comes free. Insert the new strap into the lugs and reinsert the pins from the inside outward until fully seated.

Absolutely. 18mm aftermarket straps are completely compatible with the WSTA0072, provided they are built to the same dimensional standards. Milano Straps offers handcrafted alligator and calf straps specifically designed for this watch category, with the possibility of customization in sizes and finishes. A quality aftermarket strap can even enhance the tactile experience compared to OEM standards.

Durability depends on frequency of use, exposure to moisture, and the type of leather. A quality alligator strap, worn daily, maintains structural integrity for 4-6 years before wear becomes noticeable. Calf, being denser, can last 5-7 years. This does not mean sudden failure, but progressive loss of elasticity and appearance of micro-cracks. With regular maintenance (gentle cleaning and annual conditioning), the lifespan extends significantly. Milano Straps offers an 18-month warranty on all handcrafted straps, with the possibility of partial leather restoration through the Casati Milano atelier.