The Panther series debuted in 2013, loosely tied to Gretsch's 130th anniversary, and proved to be something a bit different for Gretsch: a center block model.
They weren't the first semi-hollowbodies from Gretsch -- they were preceded by several center-block models in the 70s and the 6120N in the 90s -- but they were a fresh approach.
The 16" x 1 3/4" body used a heavily chambered spruce center block rather than the more common solid maple block, and the spruce was chambered extensively. Combined, the Panthers were both lighter and had a liveliness not typically found in center-block guitars.
Other features included a pinned bridge base extending over the sides of the center block to transmit sound to the f-hole chambers, a bound fingerboard and Schaller strap locks. It was available in black, white and limited edition Flagstaff Sunset finishes.