Digital cameras: underwater camera

underwater camera

Im looking for a camera with a minimum 25mm wide angle equivelant, macro and an underwater case, preferably semi-manul, like a Canon G9. I found the Ricoh GX100 but I cant find an underwater case. I came upon the Sea and Sea DX-1G but the case doesnt seem to come seperatley from the 1G camera. The two cameras look identical so I was wondering if the 1G is infact the GX100 but with a different name. I am open to any other suggestions.
-Than You