From G-SHOCK, the watch brand that is constantly setting new standards for timekeeping toughness, come new bi-color molded model with a sporty mix design theme. With this model, basic black brand coloring is highlighted by striking colors that are often used for high-tech sneakers and other fashion motifs. Yellow resin is molded onto the inside of the band, and each model also uses yellow for other components. This model also use orange gradations that are similar to those often seen on various types of sportswear. The GA-400BY has a colorful semi-transparent ring inside its bezel. The result of all of this is strikingly colorful designs that are sporty and attractive. • Big rotary switch for intuitive operation • ISO764 class magnetic resistance