After graduating from Kokugakuin University, he played for Chugoku Electric Power.
In March 1954, Watanabe was selected Japan national team for 1954 World Cup qualification.
At this qualification, on March 14, he debuted against South Korea.
[1] On October 12, 2011, Watanabe died of pancreatic cancer in Hiroshima at the age of 87.
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