Housing Jaeger-LeCoultre's most prestigious chronometer movement available at the time, the Geophysic was made to withstand the elements. Launched in 1958, it was in production for one short year only. The model was made to celebrate two events. While its launch commemorated the 125th anniversary of the manufacture, it also marked the very first International Geophysical Year. The Geophysic perfectly embodied the values of the International Geophysical Year (IGY) due to its antimagnetic, antishock and waterproof abilities. While most examples were cased in stainless steel, very limited numbers were dressed in pink or yellow gold as a luxurious alternative to its more casual counterpart.

The present watch is one among an exceedingly small number of known examples cased in pink gold. Preserved in honest and remarkable condition, this robust tool watch has survived gracefully throughout the past sixty years. Not only are all the luminous dots intact in the réhaut, the watch also displays a crisp and deep hallmark between the lugs. A true "barn find", it was bought by the consignor from the original owner in Africa.