The Casio G-Shock GD-100-1BDR features a rugged all-black resin case and wide band, delivering a sleek yet bold appearance suited for both urban and outdoor settings. Known for toughness, it offers shock resistance, magnetic resistance, and 200-meter water resistance—making it resilient enough for heavy-duty use.

This model includes a powerful illumination feature with a full auto LED backlight for enhanced visibility in low-light environments. Time functionality is robust, with world time covering 31 time zones and 48 cities, a 1/100-second stopwatch, 24-hour countdown timer, and five daily alarms including snooze. It also provides an hourly time signal and a full auto-calendar programmed through the year 2099. Powered by a long-lasting CR2032 battery, it offers an impressive runtime of approximately 10 years, minimizing maintenance and ensuring dependable performance.

Measuring 55 × 51.2 × 17.4 mm and weighing 72 grams, the GD-100-1BDR offers a substantial wrist presence without sacrificing comfort. This model is ideal for anyone seeking a durable, feature-packed, and no-nonsense digital G-Shock capable of withstanding tough environments and everyday challenges.