Just happened to see Casio's press release for the Japan market G-Shock Mudman GW-9300. Pretty much the same as what was
announced at Basel for the international model G-9300, however there are a few important differences.
As you can tell from the model number the GW-9300 will be radio controlled with Multi Band 6. The other difference is the GW-9300 is described to have a carbon fiber reinforced resin strap. Since no mention of this was made for the G-9300 I'm assuming the carbon fiber strap has been omitted. Hard to see any differences between the stock photos. Since the only other carbon fiber G-Shock (
GW-S5600) was also limited to a Japan release maybe there are concerns in meeting the demand of the international market.
EDIT: I just noticed it actually says "Carbon Fiber" on the strap in the picture below while the G-9300 says "Tough Solar" in the same location so I guess that indicates that the CF will stay in Japan. That's OK with me. I didn't feel like paying for it anyway.
The GW-9300 will have a MSRP of 35,000 Yen and will be released June 30.