Jaeger-LeCoultre Geophysic E-168 watch

A significant wristwatch by the Swiss watchmaker Jaeger-LeCoultre. Among the most important models in Jaeger-LeCoultre's heritage, the Geophysic chronometer has a unique history. It was launched to celebrate the company's 125th anniversary. It was also unveiled to coincide with the International Geophysical Year, a global scientific event that brought together experts from 67 countries from July 1957 to December 1958. Jaeger-LeCoultre wanted to be part of this extraordinary project, the starting point for international cooperation in Antarctica. Therefore, the manufacture developed a watch designed to showcase its exceptional expertise. This watch, produced in a limited edition of only 1,038 pieces, stands as a symbol of precision and resilience while maintaining aesthetic purity. Equipped with the caliber 478BWSbr, this movement, originally developed for military watches, features a stop-seconds function for precise time setting, a Glucydur balance wheel for exceptional stability in varying temperatures, a shock-absorbing balance wheel, swan-neck hour markers for micrometric precision adjustment, and a soft iron inner case that protects the mechanism from the effects of magnetism. All these features accompanied the first man to lead an expedition to the North Pole, particularly because this instrument was also designed to withstand magnetic fields up to 600 gauss and thus maintain its accuracy under all conditions.