Cartier
Tank Must Extra-Large Automatic
WSTA0040
The Tank Must reborn in steel — automatic, extra-large, and built to last.
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Overview
The Cartier Tank Must Extra-Large Automatic (ref. WSTA0040) revives the storied Must de Cartier spirit in a contemporary stainless steel case measuring 41 mm × 31 mm. Powered by the in-house Calibre 1847 MC, it brings self-winding convenience to one of watchmaking's most enduring dress-watch silhouettes. The silvered dial with Roman numerals preserves the graphic clarity that has defined the Tank since its introduction over a century ago.
History
The Tank Must line was relaunched in 2021, reintroducing the 'Must' name that originally denoted Cartier's accessible luxury tier of the 1970s and 1980s. The Extra-Large reference extended the collection upward in case size, catering to contemporary preferences for a more assertive wrist presence while retaining the rectangular Tank architecture. Stainless steel construction marked a deliberate democratisation of the automatic Tank, making the calibre 1847 MC movement available in a non-precious metal for the first time within this line. The reference has since become a cornerstone of Cartier's modern dress-watch offering.
Notable points
- Case dimensions of 41 mm × 31 mm place it firmly in the Extra-Large tier of the Tank Must family.
- Calibre 1847 MC is an in-house automatic movement developed by Cartier, offering a reliable self-winding option in a dress-watch package.
- Stainless steel construction distinguishes this reference from precious-metal Tank variants, broadening the model's collector appeal.
- The silvered dial with applied Roman numerals and blued-steel sword hands is a direct visual reference to classic Tank design language.
- Introduced as part of the 2021 Tank Must relaunch, the line revived a name with deep roots in Cartier's accessible luxury heritage.
Specifications
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