Watch Submarine 707 Watch now on Miruro — Free Anime Streaming Submarine 707 follows the adventures of Captain Hayami and his submarine crew in the Maritime Self-Defense Force. Series info · Watch free · Trending anime · Airing schedule FormatMangaStatusFinishedCountryJapan Adventure · Sci-Fi Shounen · Military · Primarily Male Cast Shinkai no Kantai: Submarine 707 (Adaptation) · Submarine 707R (Adaptation) · Submarine 707F (Sequel)