ミス・ユニバース・ジャパン
In 2008, Watanabe competed with 4000 entrants for the title of Miss Universe Japan, placing in the top ten at the final on April 3 held at Tokyo International Forum. Watanabe then became the face and image of Guthy-Renker skin care and fitness products, including for a DVD of Colombian dance fitness program Zumba, on TV and web media.