Welcome to Tone-on-Tone G-SHOCK — watches devoted to the monochrome aesthetic, down to thefinest detail. The GA-2100 clothes its iconic form in tone-on-tone style, available in three popular colors— turquoise, white, and volt yellow. The case, bezel, band, and even the individual dial components arefinished in subtly different shades of the same color for a monochromatic look that boasts surprisingdepth and dimension.