Casio Wave Ceptor 2296 watch battery replacement

Question

I had a jeweler replace my Casio watch battery, after which the screen just said "open" and none of the buttons would work. Another jeweler had no luck either. When I called Casio they told me that the watch has to be sent in every time the battery is replaced---------something about pressurization. I can't believe they would make a watch that costs $20-$30 just to get the battery replaced. HELP!!!!!!!!!!!!