Ted Williams was indeed one of the greatest Major League Baseball players in history, a decorated Navy and Marine Corps fighter pilot, WWII and Korea hero, and an avid outdoorsman, hunter and fisherman. As such he was also highly sought for product endorsements, and Sears marketed a line of premium sporting goods with his name on the products. No doubt this knife was one of those items. Whether the Sears specifications had anything to do with the way the knife was made, and the difference between the two knives, I do not know. But it's not unreasonable to speculate that might be the case.
Member AKTI, TSRA, NRA.
"Man has nothing that the animals have not at least a vestige of, the animals have nothing that the man does not in some degree share."
- Ernest Thompson Seton https://www.akti.org/