The ‘Reverso’ model is often and long associated with Jaeger-Lecoultre however interestingly, Cartier also explored the concept of the reversible timepiece. In 1930, Cartier developed and patented a similar reversible case system, initially naming their watch the "Cabriolet Reverso" before adopting the now better known "Basculante”. This innovative approach to watch design didn't initially prove popular until much later, more notably in the 1970s when Cartier introduced the Tank Reverso , as seen here.