Yes, Casio's Ring Watch is a real watch you wear on your finger, not your wrist. It's as mad as it sounds, and I've been wearing it.

Casio has introduced three new Master of G series watches in Japan, each designed for different outdoor and professional settings. The Gravitymaster GR-B300RY-1A9JF, Mudman GW-9500MRY-1A9JF, and ...

Casio Computer Co., Ltd. has released a new watch re-creating the Casiotron ... now with features including automatic updating of world time zone/time difference information.