The first G-Shock was the DW-5000C designed by an engineer working for Casio named Kikuo Ibe.[1] It was released in April 1983. For the next few years Casio released a handful of new models each year. The Baby-G models were released in 1991. The popularity of G-Shocks increased rapidly throughout the 1990s. By 1998, 19 million G-Shocks had been sold worldwide,[2] and there seemed to be a peak in demand as over 220 new models were released in that year alone.[citation needed] Casio has collaborated with many designers including Dee and Ricky, musicians and other pop culture luminaries to release hundreds of limited edition G-Shocks with custom designs. This long tradition of unique watches has helped build an avid following among collectors world-wide over the years.
This line of watches has expanded considerably since then and now includes atomic clock synchronization and Tough Solar functionality in the latest models. The Cockpit Series G-Shock is the official timekeeper of Nismo Racing. Many newer G-Shocks feature metal (steel or titanium) banding, and ornate analog timekeeping.
Twice a year (Spring/Summer and Fall/Winter collection) the basic models are updated. New limited models are introduced more frequently through the year. As with Swatch watches, G-Shocks have become collectors items. Arguably, the most sought after line is the Frogman. Limited edition Frogmans such as the Brazilian, Men in Yellow, Black Helios and Black Spots are some of the most desirable Frogmans.
Casio also produces