This is the Citizen Promaster Marine Dive Watch BN0231 52L. Command the sea in style with the new Promaster Marine. This iconic Citizen men s dive watch is the latest addition to the Promaster Marine collection with a strikingly original design inspired by the majestic Orca whale. The sporty and functional dive timepiece features a silver tone stainless steel case accented by a blue three hand dial and date with elliptical white hour indices and bezel indentations that evoke the shapes of the orca, plus pops of color at the 12 o clock marker and minute hand. This ISO compliant dive watch also features anti magnetic and anti shock resistance, a one way rotating elapsed time bezel, and luminous hands and markers filled with a superior lume for legibility. This model is water resistant up to 200 meters with a screw down crown, making it a perfect companion on your next dive. Sustainably powered by any light with Eco Drive technology that never needs a battery, this is the ultimate dive watch to own and comes in a unique scuba tank inspired box for the serious diver and collector