Good luck.
You are onto what is likely the best calculator watch brand with Casio. You'll need to check out a store to see the watch in person or at least review an owner's manual to find out about that full month calendar display you want. Personally, I think that will be the deal killer for many an option you might otherwise consider.
Try this:
http://www.walmart.com/ip/Casio-Blac...d-Watch/894294 .
All the best.