From G-Shock Wiki | casio watch resources
Thanks to Casio Japan for the original images and description (English translation automatically generated).
G-600K-7JR page in the G-Shock Image Archive - stock images and user contributed photos of this model.
Features and Specifications
Good watch with ridiculously poor quality strap. The color of strap changed from white (transparent) to yellow after 1 yr of use. What's more, no replacement strap is available. This mean this G600K-7JR can only last for 1 year...1 year!!! OMG