Hi, There is a gasket that resides around the screen, if done correctly, you shouldn’t have any problems, however this has not been tested and should avoid getting moisture in the device out of risk of damaging it.

This looks like an apple watch with the original 2 wrist buttons removed from the glass. i assume it means its been opened and tampered with possibly repaired. the location of those screws are odd though as in the IFIXIT tear down of the series 4, the screws would be facing towards the screen of the device and not the wrist.