Apple watch screen suddenly turned black how to fix

I bought the apple watch like a month ago everything was great until yesterday i woke up the Apple Watch was still working and a few minutes later I looked at my Apple Watch again and the screen was black

I tried restarting it by pressing both buttons checked if voiceover and if the curtain option both was disabled try force restart with the changer connected but still no luck even tried unpairing him from my iPhone

the Apple Watch is working i can hear when i connect it to the charger i can see it on my iPhone but nothing fixing it can someone help me

The Apple Watch never had anything he didn’t fell or was near water like brand new