Rubuta ci gaba don wannan sakin layi - A kakar wasan ta na karshe, Watanabe ta lashe zinare a NHK Trophy na 1979 sannan ta lashe lambar yabo ta takwas ta kasa. Ta kasance ta 6 a gasar Olympics ta 1980. Ta ƙare aikinta na gasa a gasar zakarun duniya ta 1980
, inda ta sanya 4th.