Breitling Watch Superocean II 44 Volcano Black A17392D7/BD68/131S. Equipped with a sturdy 44 mm diameter case in satin brushed steel, this latest generation divers watch is distinguished by its exceptional water resistance to a depth of 1000m and its ultra readable black or blue dial bearing oversized numerals and hands enhanced with a luminescent coating. It houses an officially chronometer certified selfwinding movement. A security valve serves to equalize the differences in pressure between the inside and the outside of the case.