1989 Swatch Open – Singles
Introduction Henri Leconte was the defending champion but lost in the second round to Goran Ivanišević.Andrei Chesnokov won in the final 6–4, 6–4 against Jérôme Potier.
Seeds A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.#  Kent Carlsson ''(first round)''#  Henri Leconte ''(second round)''#  Guillermo Pérez Roldán ''(quarterfinals)''#  Ronald Agénor ''(second round)''#  Alberto Mancini ''(quarterfinals)''#  '''Andrei Chesnokov (champion)'''#  Horst Skoff ''(second round)''#  Jordi Arrese ''(second round)''
Draw
External links *  Main draw