 Shortly into the 1954–55 season, the Leafs sold Watson to the Chicago Black Hawks.After three years in Chicago, Watson played one more year as a professional, as player-coach of the Buffalo Bisons in the American Hockey League, before retiring in 1958.He coached the St. Catharines Teepees of the Ontario Hockey League in 1958–59, and coached the senior Windsor Bulldogs to an Allan Cup championship in 1962–63.