Two of Jaeger-LeCoultre’s most distinguished achievements come together in this exceptional timepiece: the world’s smallest watch movement, designed in 1929 by its master watchmakers of the time, and the famed «Reverso» watchcase, developed in 1931. Composed of 41 tiny parts, it provides only 2 cubic centimetres of space for the movement. The case carries no less than five hundred microscopic diamonds and about one hundred emeralds - an impressive technical accomplishment and decorative feat.