I have a nice watch for daily wear and dress but needed an inexpensive watch for out door jobs where it will get beat up.  I wanted non-digital with easy to read hands and hour numbers, date and day and water proof to 100 meters. This one fit the bill perfectly.  When it arrived from Amazon, I followed the written instructions for my movement (just imagine a guy actually reading the instructions).  I tried in vain to set the day of the week. It was in Spanish and the day would not move. I called Casio tech support, went over the instructions and model and they said that I was doing it right and there was nothing they could do and said to call Amazon.  Amazon immediately sent me a replacement and return shipping label for the first watch.  When the second one arrived, I found the same problem exactly.  I kept fiddling with it and found that contrary to the written instructions, that if I pulled the stem out to the second click, and turn it in a different direction that the instructions said, it moved through the days, alternating Spanish and English. Casio needs to change the written instructions.
The watch keeps perfect time and is just what I wanted.