In 1957, having already established its mastery of the skies, Breitling set off to conquer the maritime depths by launching the Superocean, a diver's watch featuring a monohull case and armored glass guaranteeing water resistance to 200 meters (660 feet) and representing an exceptional technical feat at that time. Designed to equip professional and military divers, and particularly special troops, the Superocean soon gained a following among enthusiasts of leisure diving, an increasingly popular activity.