it's been about two months that i purchased mine and it had the common problem with the clasp spring which can be fixed by purchasing some springs and playing with them until you get the wanted result.about the movement,mine loses about half a minute a day,the movement looks swiss from the points i checked it but it must be kind of dirty or it could be out of use for a long time and that is a fact along with common sense that led me to a point that although you can buy a upo now it can be one or two years old.
ooo forgot to say,mine happens to be very water resistant, i have used it in the sea,the pool and i always wear it when i get a shower and it has been great so far( it also passed a medium water resistance test at the local watchsmith's store)