Seba went on for a 16-year presidency as club chairman of Beşiktaş J.K.. He worked with several world famous trainers like Christoph Daum, John Benjamin Toshack, and Karl Heinz Feldkamp. In 1998, he was elected as the chairman one more time and he announced that this was going to his final term. He was elected as the honorary chairman in the next financial congress in February 2000. Although he declared his support for Hasan Arat in the next chairman elections, Serdar Bilgili was elected on 27 March 2000 and became his successor.