Cartier Tank Must Large WSTA0109 2025 [Preowned]Overview The Cartier Tank Must Large reference WSTA0109 sits at a specific point in the current Tank catalogue. The Must line was relaunched in 2021 as a reference to the original Must de Cartier range of the 1970s the series that extended Cartier's design vocabulary to a wider market. The Large is the size that works for buyers who find the traditional Tank proportions too restricted for a modern wearing context. The 33. 7mm x 25. 5mm steel case