Takumi's aviation is a modern classic cocktail made with gin, maraschino liqueur, parfait d'amour, and lemon juice.

In 2010, he created the drink for the Diageo World Class Bartender Competition in Athens, Greece.

[2] Bartender and writer Gary Regan, who was judging the competition, described it as "the very best Aviation cocktail I've ever encountered".

[4] The parfait d'amour has more orange and vanilla notes than crème de violette, which is usually quite floral.

The new recipe for the drink appeared in The Japanese Cocktail : Watanabe Takumi and Kaneko Michito's philosophy.