The Yamaha Pacifica 604 is an offset double-cut strat like guitar that preceded the Yamaha Pacifica 604W but instead of the Wilkinson VS100 bridge, has a Yamaha Vintage Custom vibrato system machined from solid brass. 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 604". The tone knob doubles as a (push-push) coil tap.