The Cricket Nautical is the result of research conducted by three experts who combined their knowledge and experience, collaborating with the Vulcain Manufacture to develop the first diving watch that not only featured a system for determining dive times integrated directly into the dial but also sounded a true alarm to signal to the diver, "it's time to return to the surface!" – all in an elegant package resistant to water up to a depth of 300 meters. The trio of passionate divers includes Hannes Keller, a talented Swiss physicist/mathematician, occasional pianist, and pioneer of underwater diving; Max-Yves Brandily, explorer and filmmaker; and Arthur Droz, nationally certified diving instructor and representative of the CIAS (Centre d'Investigations et d'Activités Sous-Marines – Center for Underwater Investigations and Activities). Here, Vulcain pays tribute to Hannes Keller, who passed away last year on December 25, 2022. On November 3, 1966, in Toulon, France, he reached the abyssal depth of almost 250 meters with a Cricket Nautical on his wrist. This record was witnessed and validated by none other than Jacques Cousteau, already a legend at that time.