The Casio G-Shock World Time Alarm GA-100-1A2 GA-100 Men’s Watch is built for tough, everyday performance with bold style. Its shock-resistant resin case and strap house reliable quartz movement and an easy-to-read analog-digital display. World time, multiple alarms, stopwatch, and countdown timer keep your schedule on track whether you are traveling, training, or on the job. The large, rugged case and striking color accents give it a modern, sporty look that pairs well with casual or active wear. With 200M water resistance, this G-Shock is ready for swimming, sports, and all-weather adventures.
Built with Casio’s renowned G-Shock structure, the GA-100-1A2 is engineered to withstand strong impacts, drops, and rough handling. Its rugged resin case and bezel protect the internal module, making it ideal for sports, outdoor activities, and demanding daily use.
The world time function lets you view the current time in major cities and time zones around the globe. Quickly switch between home and world time, making it especially useful for travelers, remote workers, and anyone coordinating across different regions.
A high-precision 1/1000-second stopwatch supports detailed time measurement for training, laps, and performance tracking. The integrated speed indicator can calculate approximate speed over a measured distance, offering extra utility for runners, cyclists, and other athletes.
Four daily alarms plus one snooze alarm help you manage appointments, reminders, and training schedules. A countdown timer supports interval timing and event preparation, while the full auto-calendar is pre-programmed, so date displays stay accurate without manual adjustments.
The combination analog-digital layout provides quick, at-a-glance reading of time alongside detailed digital data on sub-displays. Striking blue accents against the black dial enhance legibility and give the watch a bold, modern aesthetic that stands out on the wrist.
We’ll try to get your question answered within 24 hours by a Best Buy customer or brand representative.
Reviews coming soon
Learn more >