CASIO RING WATCH A compact, fully-metal ring watch with a brilliant finish Made using Metal Injection Molding (MIM), this mini watch offers a seamless and precise build. The case, back, and ring are molded as one, with a finely textured strap. Water-resistant and battery-replaceable. Size 22 (Ø 20 mm), adjustable with two included spacers. It displays time, date, dual time, and a stopwatch on a 6-digit LCD screen. A 10× smaller module makes this technical gem possible.