Lakshya Sen became the first Indian ever to win the Japan Masters 500 title, beating Koki Watanabe in a 3-game thriller. With a spot in the BWF World Tour finals on the line, India's Lakshya Sen takes on home favourite Koki Watanabe in the men's singles final. Kumamoto (Japan), Nov 15 (PTI) A tenacious Lakshya Sen capped another impressive week on the BWF Tour with a second consecutive title, clinching the Kumamoto.