Beware of buying anything from PROFESSIONAL USED STORE.  They sent me the wrong watch all together and then they had the gull to say when I complained that it was an up grade from the Casio WVA470JACF WAVECEPTOR solar and atomic sports watch I had orginally ordered.  Add insult to injury, huh.  When I did some research on the watch they did send it was discontinued long ago.  That watch wasn't even in exisitance anymore.  You can't even find it on EBAY (Casio EF-S10).  Make a long story short; Thanks to AMAZON.com for backing me up on the buy I got my money back.  They did even ask for the watch back.  If it's backed by ANAZON your in good hands.  That is all I have to say.