Weird dots and cracks on my apple watch

Hie everyone, i bought my apple watch series 4 more than one year ago.

after 3-4 months i started to see weird cracks and dots on the body on my watch and it gets more everyday. I am desperate since i don’t know what causes it. It already ruined my watch but i was just wondering if any one else experienced same issue or its just me in the whole community.

if you have any idea why it happens i appreciate to tell me.

p.s: i am pretty sure it never had an accident and I had never physically hit it somewhere, so its not caused by hitting to a surface or something