Watch Shinkai no Kantai: Submarine 707 Anime in High Definition for Free at Anime Crazy Shinkai no Kantai: Submarine 707 Othername: Undersea Fleet Submarine 707F, 深海の艦隊 サブマリン707 Type: OVA Released: 1997 Status: Completed Genre: Action Adventure Military Sci-Fi Synopsis: Shinkai no Kantai: Submarine 707 Episode List Shinkai no Kantai: Submarine 707 Episode 13 years ago