I agree, the Seiko 6r15 would be a better choice over the NH38A, really any good bi-directional winding movement would be a consideration, however, as I mentioned this would just be a personal choice as I just cannot get along with a noisy rotor.
Having said that, my Everest (which has the miyota 9039) is very quiet with minimal rotor whir but I do have other watches with miyota movements and you can hear them spinning from a mile away, so to speak.
Either way, Eddie supplies some excellent watches and if the PRS-54 does come into fruition then I would most certainly consider picking one up, loving the Salmon dial variant.