On 25 October 1926, Italian engineer and subsea pioneer Roberto Galeazzi filed the first of many patents around the world for a groundbreaking approach to pressure-resistant submarine hull design that would shape the history of underwater engineering and the origins of DRASS.

His patent challenged conventional hull design with a new structural principle that enabled pressure-resistant structures to achieve 40% less weight at the same operating depth — opening the way to unprecedented depths beneath the sea.

That legacy of innovation continues to this day — from the famed Galeazzi Atmospheric Diving Suits to diving bells, saturation chambers and submersibles used in commercial diving and naval search & rescue, as well as by Jacques Cousteau on his historic deep-sea expeditions that brought the wonders of the deep to a worldwide audience.

A century on, our commitment to engineering innovation beneath the surface remains as strong as ever.

100 years of pushing the boundaries beneath the surface. And the story continues.