Hi would this seat with armrests fit my Hitachi EX 60-5?

I have had a look for you and I am very sorry as this is a standard replacement seat that can fit a wide variety of machines we do not have a list of all the models it fits, you would need to check the dimensions of the seat against your machine, here is the listed dimensions: Suspension travel 90 mm Slide rail travel 150 mm 3 stage height adjustment (60 mm)