Mezue ahịrịokwu na-esonụ: Na February 12, 1974, Watanabe mere egwuregwu mbụ ya maka ndị otu mba Japan megide Singapore. N'ọnwa Septemba, a họpụtara ya na Japan maka
Egwuregwu Eshia nke afọ 1974. Ọ gwakwara na asọmpi Olimpik nke afọ 1976. Ọ gbara bọọlụ iri abụọ na asatọ ma nye goolu anọ maka Japan ruo n'afọ 1979.