The new classic GA2100 model incorporates the octagonal form of the original G-SHOCK DW5000C. The case is made of fine resin embedded with carbon fibres, making the thin, lightweight, and simple design configuration of this model possible. The new white band and bezel GA2100-7A is combined with a black face for a cool, refreshing look. Shock Resistant 200-meter water resistance LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day) Digital: Hour, minute, second, pm, month, date Accuracy: ±15 seconds per month Approximate battery life: 3 years on SR726W × 2 Size of case : 48.5×45.4×11.8mm Total weight : 51g