The first model of the 'disc drive' series, the WM-DD, was introduced in 1982, and had a solid reputation for performance.
DD2 had the addition of Dolby B noise reduction, and many minor improvements.
Last DD unit to be released, closing the cost-reduced DD1-DD10-DD11 line.
Added a quartz-locked action to the DD motor, giving absolute speed stability.
First DD unit with MegaBass, derived from DD-100 DOL. Feature/functionality a mix of DD3 & DD-100: quartz driven and bass expansion.
The last Sony portable with 2 headphone jacks, almost completely a WM-DD30 wearing a modern jacket.
With a disc driven brass rotor that in turn drives a belt driven mechanism.
Colourful version of a low end Walkman, including accessories like the carrying strap and earphones.
The 15th anniversary Walkman with 25 times Hi-SPEED Music Search and pop-up eject mechanism. Available as EX1HG model, chrome plated.
An updated version of the EX1, with Dolby Noise Reduction Type B. Paved the way for the beautiful WM-EX5.
The ultimate Walkman, next to the WM-EX20 the only one with MEGA SURROUND
The battery door can be detached and flipped to accommodate either a gumstick or AA cell.
Also known as the WM-EX618, this super Walkman is just over 2cm thin but packed full of features
MegaBass, Groove and Revitalizer, but without Dolby B noise reduction.
Final model produced for the Japanese domestic market, including the obligatory cradle. Jog dial like control wheel.