Hamilton born Jim Bett showed great potential as a schoolboy international and was signed by Dundee. After moving to Airdrie Bett moved to the relative obscurity of Icelandic football when he joined Valur in 1978. Bett was to make a name for himself when he moved to Belgian side Lokeren attracting the attention of Glasgow Rangers who ended Jim's Scottish exile in June 1980. Bett did a fine job for the Glasgow outfit who at the time were living in the shadow of the big two of Aberdeen and Celtic. During his spell at Ibrox he won a both a Scottish Cup and League winners medal and also collected his first Scottish cap against Holland at Hampden in 1982. He went on to gain 25 caps in total including being with Scotland at the 1986 and 1990 World Cups. Bett ended his spell with Rangers in 1983 and returned to Lokeren.
Alex Ferguson brought 'Jazzer' to Pittodrie in 1985 in a £300,000 transfer from the Belgium club. After scoring on his debut against Hibernian at Pittodrie Bett went on to become a vital part of the Aberdeen midfield in the post-Gothenburg era. He was in the Aberdeen side that won the Scottish Cup against Hearts at Hampden in his first season with the Dons. Jim also played in both the Dons League Cup and Scottish Cup successes over the Old Firm in season 1989-90 and was also part of the Aberdeen side that came so close to taking the Premier title in 1991.
During his nine-year spell with the Dons Jim made 338 appearances for the Dons scoring 47 goals before moving briefly back to Iceland where he had spent part of his early career. Jim finished his playing days with Hearts and Dundee Utd and both his sons Baldaur and Callum had brief spells with the Dons in the 90's.