I am the proud new owner of a pink Sekine that I bought for $8.99 at the Goodwill. It has the "diamond" headbadge, says "made in Japan", but does not say "world finest". I pumped up the tires and took it for a spin around the neighborhood. Bike is operable, but needs some work. I've appreciated this thread and would love any additional info about Sekine and/or restoring old bikes.