CASIO RING WATCH CRW-001G-9JR Casio Ring Watch This model replicates the functionality and intricate design of a Casio wristwatch in a ring size. The stainless steel ring is crafted with advanced metal injection molding technology to capture every detail, and is treated with gold-colored ion plating. The monocoque structure and glass bonding technology enhance airtightness, achieving water resistance for everyday use. Compared to standard wristwatch modules, this is downsized to about 1/10th. By combining it with a small button battery, a digital watch is realized in a ring size. It is also equipped with a 7-segment display LCD. In addition to the time, it also displays the date, dual time, stopwatch, and more. It features an emotional flashing light function that gently blinks when the set time is reached. The ring size is size 22, and size adjustment spacers for size 19 (inner diameter 19mm) and size 16 (inner diameter 18mm) are included.