Casio is bringing its ring watch to the U.S. Originally a Japanese exclusive and “the very first ring watch,” the CRW001-1 (as it’s technically known), launched last year as part of the brand’s 50th anniversary celebration. While at first the idea of a ring-sized watch might seem like a bunch of silliness, it really just shows off the brand’s continued playfulness in an often uptight market. And it’s something the brand must truly believe in, considering...