The Yamaha Pacifica 604WH is part of the Yamaha Pacifica series and resembles the Yamaha Pacifica 604W but features the Yamaha HD finish. It also has Sperzel locking tuners, the Wilkinson Gotoh VS100G tremolo and a pickguard. It looks like this guitar has two single coil pickups with a humbucker in the bridge position. The bridge position actually contains two coupled single coil pickups making it a total of 4 Alnico V single coils in this guitar. Hence the 4 in the model name "Pacifica 604WH". The tone knob doubles as a (push-push) coil tap.
Other features are: