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Short Description
Discover the ultimate in durability and style with the CASIO G-SHOCK GA-100-1A2 wristwatch. Perfect for adventurers and everyday wearers alike, this rugged timepiece features shock and water resistance, magnetic protection, and a full auto calendar. Enjoy free worldwide shipping directly from Japan and shop with confidence thanks to our 1-month warranty. Whether you're an athlete, outdoor enthusiast, or simply value reliable timekeeping, the GA-100-1A2 is engineered to meet your needs with precision and flair. Elevate your wristwear collection with this iconic G-SHOCK model today!
Free shipping Worldwide
Shipped from Japan
3 months full warranty
Seller based in Japan

Description from the Seller
Product Overview
The CASIO G-SHOCK GA-100-1A2 wristwatch harmoniously blends rugged durability with advanced functionality, making it an essential accessory for those with an adventurous spirit as well as for everyday users. Engineered to endure the most demanding environments, this timepiece stands as a symbol of quality and style that does not compromise.
Key Features
This remarkable wristwatch is equipped with a host of features designed to elevate your daily activities:
- Shock Resistant: Built with a robust shock-resistant structure, ensuring it can withstand impacts from any adventure.
- Magnetic Resistance: Complies with JIS1 standards, allowing it to function seamlessly in environments with magnetic fields.
- Water Resistance: Rated to 20 ATM, making it ideal for swimming, snorkeling, and other water activities.
- World Time: Displays time across 48 cities in 29 time zones, complete with a daylight saving time setting.
- Stopwatch Function: Precision stopwatch capable of measuring up to 1/1000 seconds for a maximum duration of 100 hours.
- Timer Feature: Features a versatile timer with a maximum setting of 24 hours and auto-repeat functionality.
- Multiple Alarms: Set up to 5 alarms, including a snooze function for those extra precious minutes of sleep.
- Full Auto Calendar: Automatically adjusts the date, ensuring you’re always on track.
- LED Light: Features auto-light functionality with an adjustable afterglow for optimal night-time visibility.
Specifications
Marrying form and function, here are the detailed specifications of the GA-100-1A2:
- Size: 55mm (H) × 51.2mm (W) × 16.9mm (D)
- Weight: 70g, making it lightweight yet sturdy.
- Battery Life: Approximately 2 years, ensuring long-lasting performance.
- Time Accuracy: Monthly deviation of ±15 seconds, providing reliable timekeeping.
Why Choose G-SHOCK?
Renowned for their indestructibility and innovative technology, G-SHOCK watches are the preferred choice for military personnel, athletes, and outdoor adventurers globally. The GA-100-1A2 transcends the role of a mere timekeeping device; it embodies precision engineering and reliability, designed to accompany you on any journey life takes you on.
Cultural Insights
G-SHOCK watches are not just functional; they represent a philosophy of 'absolute toughness' conceived by CASIO's dedicated engineers. The brand originated in Japan, where craftsmanship and attention to detail are paramount. This wristwatch is a reflection of Japanese innovation, blending traditional techniques with modern technology to create a product that is both aesthetically pleasing and incredibly durable.
Usage Tips
To make the most out of your CASIO G-SHOCK GA-100-1A2, consider the following tips:
- Regularly check the water resistance by ensuring the crown is securely closed before water exposure.
- Utilize the world time feature when traveling to stay connected with home time zones.
- Familiarize yourself with the various alarm functionalities to enhance your productivity.
- Take advantage of the LED light feature for better visibility during nighttime activities.
Comparison or Advice
When comparing the G-SHOCK GA-100-1A2 to other wristwatches, consider its unique combination of durability and advanced features. While many watches may offer basic timekeeping, few can match the ruggedness and functionality of G-SHOCK. If you are an outdoor enthusiast or someone who values both style and resilience in a watch, the GA-100-1A2 is an excellent choice.
Conclusion
In conclusion, the CASIO G-SHOCK GA-100-1A2 is an exemplary companion for anyone seeking a dynamic wristwatch that provides advanced features within a robust and stylish design. Whether you are an athlete, an adventurer, or someone who appreciates reliability, this timepiece is sure to impress and serve you well.