Jason,
I use mostly Seekonk presets. I would think that any measuring instruments (other than steel tapes, rulers, etc,) need to be calibrated on a regular basis. I have a nice collection of the Seekonk preset wrenches that will only tighten a fastener to one value (20 inch/lb only, 15 inch lb only...etc. again) that I have been buying over the years. They're danged expensive given that each wench will tighten a fastener to only one preset torque value.
Should I have those calibrated?
