Restoring Eames Aluminum chair (Amazon62 & Waldorf + everyone else?)  

Hello,

My most recent acquisition, a aluminum office chair produced by Herman Miller, see pics.

I'm not so into Eames, it's rather hard to come by here in Belgium too.

But this one had the potential to add some color to our interior and as the metal

parts are in somewhat of a state, the price was reasonable too. At 200 dollar I hope

I did ok.

What do I have here? It seems the aluminum started oxidizing and pushes away the finish

on top. To me it appears to be chrome, or is it a clear coat with some polished aluminum

attached to it?

I've seen some threads on the forum concerning refinishing a chair like this one for instance:

https://www.designaddict.com/forum/Repair/Restoring-Charles-Eames-Aluminium-Group-lounge-chair

My question:

How do I clean up the metal parts, without harming the vinyl/naugahyde?

Do I need the take the whole chair apart. I'm a bit weary to effect the upholstery.

Waldorf, can you elaborate on that?

Amazon 62 (Maarten) can you share your experience?

Thanks for looking into this all!
<img class="wpforoimg" src=" https://www.designaddict.com/sites/default/files/forum/2017/01/img503