Parnis Chronometer
I bought this for my Mom quite sometime back, she complained it's foggy, of course, it's not a 20ATM watch. :lol: After poking at it for a while, then I realised it's a screwed down caseback. :shock: and it has a screwed down crown too :shock: :shock: :lol:

It's quartz btw, I think it's like USD20-30 8-)
Took out the movement, clean up the insides, especially the crystal, viola like new !