GA-2100RRB-4ADR This G-SHOCK 2100 Series model features a vivid red bio-based resin band with a carbon and bio-based resin case and bezel, paired with a red analog-digital dial, inverted LCD, and contrasting black accents for a bold monochrome look. Built with shock-resistant construction, Carbon Core Guard structure, mineral glass, Neobrite, and 200-meter water resistance, it combines dependable durability with the slim octagonal profile of the GA-2100. Confirmed functions include world time across 31 time zones, a 1/100-second stopwatch, 24-hour countdown timer, five daily alarms, hand shift feature, full auto-calendar, and double Super Illuminator LED lighting, making it a practical everyday G-SHOCK with striking red styling.