So... what would explain why a nineties-style Sharp box would be made in Japan and have a weird serial number? OH... and look at how what should be "a long period" at the end of the nameplate is "along period." Ever see spelling/grammatical errors like that in emails you get from banks, telling you your credit or ATM card has been frozen and you'll have to sign in and enter your personal and credit information to get the card re-activated? If you have, you know that's one of the sure signs the email is a FAKE!!
So, maybe this Sharp QT-222W is a FAKE, perhaps a Chinese forgery. I have a small Sony multi-band radio that I know is a forgery, because the model number doesn't exist, and the Sony name on the front isn't quite straight. This Sharp gives me the same vibe. I mean, Sharp simply didn't make lightweight, octagonal mono boxes at the time when they were manufacturing stuff in Japan... did they? Good heavens, even the little, mono pastel QT-5's were made in Korea! And the colorful QT-F10's were made in Malaysia.
PLUS, UM-1 is the Japanese designation for a D battery. But this isn't a Japanese-market box, because the FM band starts at the normal, worldwide 88MHz and not the Japanese-only 76MHz.
As odd as it may seem, forgery does happen. Any thoughts?