I have a couple of Sansui Walkmans, they are of relatively build quality,
I bought these more out of curiosity, I dn't think they are particularly desirable
models. One of them looks suspiciously like a JVC Walkman so probably made
commissioned for Sansui, they are storage at present unable to give you any
model numbers or pics sorry, plan to upload some when I work out how to.

Sorry about my first reply to your question regarding Sansui
Walkmans ( my daughter is panicking about a visit to the dentist
tomorrow and is asking lots of questions whilst I'm typing)
what i ment to say was both units are of poor external build but internal
mechanics are of a high standard. Only a belt change was required
To get them going again, hope this has made more sense.