The "Cabriolet Reversible" or "Tank Basculante" model was introduced into the market in 1932. The main purpose of this ingenious system, allowing the complete 360 degree rotation of the case around the horizontal axis, was to protect the crystal and consequently the dial during sporting activities.
Its development was a joint collaboration between LeCoultre, César de Trey of Spécialités Horlogers SA in Lausanne and Jaeger Paris, resulting in the patent for a watch in 1932 reserved for Cartier and known initially as "Cabriolet Reversible". The case pivoted lengthwise within an articulated frame and the integrated winding crown was placed at 12 o'clock.
The re-edition of this celebrated wristwatch was launched in the 1990s.
The model is illustrated and described in Cartier - The Tank Watch by Franco Cologni, pp. 97-100 & 214-215, in Le Temps de Cartier by Jader Barracca, Giampiero Negretti, Franco Nencini, p. 205 and in Ore d'Oro 2 by Jader Barracca, Giampiero Negretti, Franco Nencini, p. 129.