When first introduced to the market in 1921, four years after Cartier introduced the original Tank watch, the massive size of this, the largest of three, curved ‘Cintree’ models was absolutely breathtaking. Measuring 46 mm long by 23 mm wide, the sensually curved case conforms perfectly to the shape of the human wrist. Secured by four screws found on its sides, the case was finished superbly by Cartier, with a mix of brushed and polished surfaces that emphasize and enhance its curves and clean lines.

This example made around 1935 features Cartier’s iconic Roman numeral hour markers, surrounding a closed, rectangular minute track at its center. The blued steel Breguet, or pomme, hour and minute hands match the winding crown that is topped with a genuine cabochon sapphire – an elegant nod to Cartier’s roots as the Jeweler to Kings – the King of Jewelers.