Yup, that's what you need (assuming your Waterford takes an English headset which is very likely). But I can't figure out if they really have it. I go to the headset page, click on threaded headsets, and it's not there. I go to the threadless and there is a Campy Record for $55. On the link you gave, it pictures a threaded and the spec sheet says threaded, but if you click for a bigger picture you get a threadless. If they really had Campy Record 1" threaded headsets for that price, I'd scarf one up. Then I'd make you a good deal on a slightly used Chorus headset.

But I'm still looking for an older headset with a tapered crown race. All the new ones have flat races which are meant for forks with recesses brake bolts. My non-recessed brake bolt only turns 1/32 at a time with a flat crown race just above it.