Cartier
Tank Must SolarBeat Large
WSTA0059
Solar-powered elegance rooted in a century of Tank heritage.
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Overview
The Cartier Tank Must SolarBeat Large (ref. WSTA0059) brings photovoltaic technology to one of horology's most enduring dress-watch silhouettes. Its stainless steel case measures 33.7 mm × 25.5 mm, a proportion that sits comfortably in the larger end of the Tank Must family. The silvered dial with perforated Roman numerals preserves the graphic clarity that has defined the Tank line since its introduction in 1917.
History
The Tank Must line was revived by Cartier in the early 2020s as a contemporary restatement of the Must de Cartier concept, pairing accessible stainless steel cases with refined Cartier design language. The WSTA0059 was introduced in 2021 alongside the broader SolarBeat initiative, in which Cartier integrated its proprietary photovoltaic quartz movement into several iconic references. The SolarBeat calibre is engineered to run for extended periods on ambient light, reducing the need for battery changes and positioning the watch as a low-maintenance companion for daily wear.
Notable points
- Powered by Cartier's SolarBeat photovoltaic quartz movement, which harvests energy from ambient light through the dial.
- Silvered dial features perforated Roman numerals — a detail that allows light to reach the solar cells beneath while maintaining the Tank's classical typography.
- Stainless steel case at 33.7 mm × 25.5 mm occupies the larger size tier within the Tank Must range.
- Introduced in 2021, the reference marks Cartier's integration of sustainable movement technology into a heritage dress-watch line.
- The Tank silhouette, with its parallel vertical brancards and sapphire cabochon crown, traces an unbroken design lineage back to 1917.
Specifications
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