The Casio G-Shock GA100-1A4 is a bold and rugged men’s watch designed for those who demand extreme durability, advanced functionality, and a striking sporty look. Featuring a black case with red accents, this model combines an analog and digital display for clear readability and versatile everyday use.
Built with G-Shock’s legendary Shock Resistant technology, the GA100-1A4 is engineered to withstand impacts, vibrations, and harsh conditions. It also offers magnetic resistance, 200-meter water resistance, and a full range of practical features including world time, a high-precision stopwatch, countdown timer, and multiple alarms—making it ideal for both urban wear and active lifestyles.
Shock Resistant – Built to handle tough conditions
Magnetic Resistant – Maintains accuracy near magnetic fields
Analog + Digital Display – Functional and easy to read
200 m Water Resistance – Suitable for swimming and snorkeling
World Time – 29 time zones (48 cities)
1/1000-Second Stopwatch
Countdown Timer
5 Daily Alarms + Hourly Time Signal
Auto LED Light – Enhanced visibility in low-light environments
Case & Band Material: Resin
Crystal: Mineral glass
Movement: Quartz
Case Size: Approx. 55 × 51.2 × 16.9 mm
Weight: Approx. 70 g
Color: Black with red accents
Gender: Men / Unisex
Original Casio G-Shock GA100-1A4 watch
Official Casio presentation box
Instruction manual
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