Since 1957, the Breitling Aeromarine Chrono Superocean has established an enviable reputation in the field of diver's watches. The Chrono Superocean is fitted with a special version of Breitling Calibre 13 which drives its day and date displays, providing a sturdy, precise and reliable movement that has repeatadly proven its worth on land, in the air, and now in the sea.