None of them are pressure tested so none of them carry wr rating worth a damn. You are right about the variability of production. I got one example that is well made but another that has a protruding crystal and stiff bracelet links. Real makers would never allow line defects to be released.
Interestingly, I'm pretty sure Parnis is where the serious homage makers like Ancon and Ginault source cases and bracelets. Parnis case is well made and finished and has some heft on the wrist. Bezel is 90 to 110 click, seen both counts, with decent action.