我想問下CASIO-Baby-G既手錶幾多錢,出左幾耐同邊度有得買

I cannot directly answer your queries. Your best option is to contact Javys for pricing info first, then compare these prices with those at Sino.

For more info on the aforementioned models, check here
http://www.javys.com/casio/home.htm
Enter the model number(s) on the product search box and you should be able to get just bit of info -- specs, month of release etc.