It is actually a NIKKO Golden Eagle. Nikko was essentially formed as a joint venture with Olin/Winchester in Japan. Winchester had invested in the plant and had them manufacturing parts and stocks. Of course, things went sour when Nikko, using much of the technical information they had acquired in their JV decided to do things on their own. Nikko did produce firearms for Weatherby, so that may be the "knock-off" theory.
They are usually very good looking rifles, as they took the best stock blanks in their JV efforts. As for being a good rifle, I have only seen a few but range reports were satisfactory.