Yes, most likely although I've never taken them in to get the washer replaced. Up until about a year ago I used to take them in and they'd just swap the old one for a new one. But they're shying away from doing that now. I just got my chronarch back from Ollie Damons in portland which is a service shop. I had sat on the reel and bent the star drag, while it was in I had them redo the drag system and it's like brand new again.
Keith