I know this is a thread about DWO and I am just about to order PF Nautilus and KMF Aquanaut due to this great project. My only concerns are towards the rotor noise of the miyota. I have the JF 15400 and it's perfectly quiet. I have the BP Overseas and it got only better after a complete revision from a watchsmith who recommended to take out the deco plate because this is what makes it still noisy. So I believe it's not only the oil, it's the construction of the mvmt, too. Don't get me wrong, my reps with asian 2824 (JF ROO Diver, ZF Fifty Fathoms, Nautilus V4) have a rotor noise, too. But the rotor is not helicopter-spinning like in the BP Overseas (funny enough it is NOT spinning that much in the 15400). However are you guys who oiled or revised the PF or KMF fine with the rotor sound? Is it acceptable? does it damage the overall quality feel? Thanks a lot upfront for your opinons. and merry christmas, B.