Age of Issey Miyake set?

Hello everyone, I am hoping someone can help me with assigning a date to this set. I'm thinking 70s or 80s. This particular label is not in the resource but the font of the letters is similar to the labels attributed to the 1980s. The set is very soft and light weight, made of 50% linen and 50% polyester. Plain and simple, but looks oh so comfortable!
According to the Issey Miyake website, a Paris store was first opened in 1975.
(Sorry about the horrible photo of the set. I'll try to get a better one with the set on my mannequin this weekend. She's put away right now.)

 

Well, I can't say that it looks much better when it's on the mannequin, LOL.

 

Thank you, Mary Jane.
There are no belt loops, even thread ones, but I agree it would look better belted.
It's my first Issey find but I'm not dancing in the aisles about it. I know he was generally considered a minimalist but this is downright plain.

 

This is the kind of garment that screams for an editorial! I love it, I see it on a moving model with a big cocoon coat,



Not editorial but interesting photo of typical 80s styling.

 

Thank you for the photos, Carla, you've helped me to appreciate my set more!