Tank Solo watch, XL, mechanical movement with automatic winding. Steel case, beaded crown set with a synthetic cabochon-shaped spinel, silvered opaline dial, Roman numerals, blued-steel sword-shaped hands, sapphire crystal, steel bracelet, calendar aperture at 6 o'clock. Case dimensions: 31 mm x 40. 85 mm, thickness: 7. 80 mm. Water-resistant to 3 bar (approx. 30 meters/100 feet).The modest, modern design of the Tank Solo watch made it a classic from the moment it first appeared in the Tank collection. The Tank Solo honours the unique aesthetic that lies behind the collection's success while reworking the model with a number of variations. Explore the full Cartier range here.