Phileweb published their April camera/lens sales ranking for the Japanese market (collected from the top 6 stores: K’s, Yodo, Map Camera, Fujiya, Bic, and Kitamura) and the Pentax K-3 Mark III got the top stop in the DSLR category:
Mirrorless camera
DSLR cameras
High-end compact cameras
Zoom lenses
Prime lenses
Source: Phileweb (translated)