Looks a lot like the MIDI Fighter Twister, which is a great device, even if a tad expensive.

I use the Fighter Twister to play vintage synth simulations and was considering ripping it apart and place the encoders on a custom made front plate that resembles the old gear. It'd be only a stopgap, because I'd need a lot of different versions. A natural extension of this idea would be something like the Ottopot but with rearrangeable encoders, like on mechanical keyboards with exchangeable switches. Then add custom front plates and you'd almost be there.