The Casio G-Shock GM-2100MG-1ADR stands out with a sophisticated black resin body complemented by a radiant gold ion-plated metal bezel, inspired by the textured surface of lunar craters. This model blends rugged durability with a sleek, modern aesthetic, making it perfect for both everyday wear and special occasions.

Built with G-Shock's signature toughness, the watch features shock resistance, 200-meter water resistance, and a Carbon Core Guard structure reinforced with a stainless steel bezel. A mineral glass face with Neobrite-coated hands enhances readability and durability. Functional features include world time for 31 time zones and 48 cities, a 1/100-second stopwatch, 24-hour countdown timer, five daily alarms, an hourly time signal, and a full auto-calendar pre-programmed until the year 2099. The dual LED Super Illuminator backlight ensures excellent visibility in all lighting conditions, and the hand shift function moves the analog hands out of the way to clearly view digital information.

Measuring approximately 49.3 × 44.4 × 12.1 mm and weighing around 78 grams, the GM-2100MG-1ADR offers a comfortable, low-profile fit. Powered by twin SR726W batteries, it provides around three years of reliable timekeeping with an accuracy of ±15 seconds per month. This watch is ideal for those who want a refined G-Shock with bold gold detailing and dependable performance.