Casio GA-100 GA-100TU-1A3ER | Shock Resistant, 200M Water Resistant, World Time
Authentic Casio — Authorised Seller Sold by Gadgeticloud. Every watch includes the full manufacturer’s warranty.
Secured and trusted checkout with
Duties & Taxes Included — 100% paid. No customs surprises at delivery.
Casio GA-100 GA-100TU-1A3ER | Shock Resistant, 200M Water Resistant, World Time
Unleash Unrivalled Toughness and Precision
Designed for the adventurer and the urban explorer alike, this Casio G-SHOCK combines legendary shock resistance with advanced timekeeping features. Perfect for those who demand durability and functionality, it's ready for any challenge, from extreme sports to daily commutes.
Specifications
| Model Number | GA-100TU-1A3ER |
| Case Size (L× W× H) | 55 × 51.2 × 16.9 mm |
| Weight | 72 g |
| Case and Bezel Material | Resin |
| Band | Resin Band |
| Construction | Shock Resistant |
| Water Resistance | 200-meter water resistance |
| Power Supply and Battery Life | Approx. 2 years on CR1220 |
| Glass | Mineral Glass |
| Compatible Band Size | 145 to 215 mm |
| World Time | 29 time zones (48 cities + coordinated universal time), daylight saving on/off, home city/world time city swapping |
| Stopwatch | 1/1000-second stopwatch, measuring capacity: 99:59'59.999'' |
| Timer | Countdown timer, measuring unit: 1 second, countdown range: 24 hours |
| Alarm/Hourly Time Signal | 5 daily alarms (with 1 snooze alarm) |
| Light | LED light, auto light switch, selectable illumination duration (1.5 or 3 seconds), afterglow |
| Light Color | LED: Amber |
| Calendar | Full auto-calendar (to year 2099) |
| Accuracy | ±15 seconds per month |
| Other Features | 12/24-hour format |
Key Features
- Shock Resistant construction for ultimate durability.
- 200-meter water resistance for swimming and diving.
- World Time function with 29 time zones.
- 1/1000-second stopwatch with speed indicator.
- Five daily alarms, including one snooze alarm.
- LED light with auto switch and selectable illumination duration.



