Fixing a broken Apple watch

Hi, I bought an Apple Watch series 6 after seeing a posting on HUKD. I've managed to break it after it was dropped. My screen is fine, but the back of the watch housing is damaged. It still charges but it is badly cracked and parts of the interior are visible, without protection if it gets wet. Does anyone know if this is fixable? I've tried my local fixers and they can't do it so I am losing hope! Thanks