Laurent Ballesta, a pioneer in the world of deep diving, goes to greater depths than the usual limits, discovers a world that was previously inaccessible, and takes the time to observe it.

As a biologist, he set himself the target of personally meeting the coelacanth, the greatest zoological discovery of the 20th century and exploring its secrets.

In this exceptional context, Laurent Ballesta delivers a personal review of the Blancpain X Fathoms, which he wore during his last expedition.