Need Help finding Replacement Belt for rare JC Penny Walkman

Hello, I haven't used this account in around a year.
But I recently purchased a re branded sharp JC-7 or JC-77 ( both models look identical) but mine is Re branded as a "Surround Sound" but on the back it says JC Penny.
I've tried several belt replacements I have for other Sony models but none I own seem to fit right.
The original belt was in there but was to loose and slippery, The diameter of it was approx 64mm but I wanted to find belts around 60mm or 62mm. I didn't measure the thickness and i lost the belt but I think it's around the thickness of a WM-2 belt
I can't find any online so I was wondering if anyone knows of a More common Walkman model that uses the same belt size that's more available. Or if someone knows of a website or Ebay listing of a belt that would fit it. This model seems pretty rare and I would love to get it working since cosmetically it looks really nice.
Thanks.

 

This is the right size belt for WM-2
https://www.ebay.ca/itm/Belt-for-So...724809?hash=item1eab3a0389:g:5ckAAMXQRPRTHJKF

or

For 61mm diameter the right size belt would be about 7.5 inches circumference
probably you need something like this
https://www.turntableneedles.com/Square-Belt-Orbicular-75-Inch_p_460.html
The thickness of this one is 1mm

 

Thank you very much! I will post an update when belts arrive to let you know if they fit or not. Then I can reassemble it and take some photos of it since it looks nice design wise.

 

Unfortunate news. Belt arrived today and when I put it in it seemed too tight and caused it to play way to fast, but it allowed the mechanism to move and I noticed it has a stuttering issue, I suspect it is the gear that turns the take up reel. I will try to find the original belt Ilost for more info on size. But I think I'll just put this project on hold for now since I really need to Recap a lot of my Walkman's (My Aiwa HS-P06 sounds TERRIBLE). Thank you Boodokhan for the help anyway, all ways appreciated!

 

Please share your experience fixing other models. I do have HS-p06 and for now sounds well but someday will needs to be recapped
It would be good to have bunch of belts always available (different sizes)