Walkman: A História Ilustrada (1979–2004) A timeline of Sony’s cassette Walkman models from 1979 to 2004 - EP.21 - 1990: SONY WALKMAN WM-600

 

As the 1990s began, the WM-600 reflected the Walkman’s early ’90s refinement. Its key

addition was automatic tape direction detection, identifying side A or B without holes or 

indicators.