CASIO
G-SHOCK GA100BEG-1A
G-SHOCK GA100BEG-1A
G-SHOCK GA100BEG-1A – GA-100 Series Analog-Digital Watch
The G-SHOCK GA100BEG-1A is a bold GA-100 Series analog-digital G-SHOCK watch featuring a striking black and electro green design. Built with legendary G-SHOCK shock resistance, magnetic resistance, 200-meter water resistance, and practical everyday functions, this model delivers a fearless modern look with dependable toughness.
New Release: 05/2026
Design Overview
The GA100BEG-1A brings a bold, dynamic, and electric style to the G-SHOCK lineup. The LCD is printed with touches of electro green, set against a bezel, band, and dial in classic G-SHOCK black. This creates a sharp, stylish contrast that feels cool, modern, and energetic.
Press the light button to illuminate the digital display for easy readability, even in the dark. With electro green accents against timeless black, this analog-digital G-SHOCK offers a strong visual presence while maintaining the durability expected from G-SHOCK.
Key Features
- Analog-Digital display
- GA-100 Series design
- Shock Resistant construction
- Magnetic Resistant
- 200-meter water resistance
- Resin case and bezel
- Resin Band
- Approx. 2-year battery life on CR1220
- World Time with 29 time zones
- 1/1000-second stopwatch
- Countdown timer up to 24 hours
- 5 daily alarms with 1 snooze alarm
- Hourly time signal
- LED light with amber light color
- Full auto-calendar to year 2099
- 12/24-hour format
Case & Exterior
- Case / Bezel Material: Resin
- Band: Resin Band
- Glass: Mineral Glass
- Compatible Band Size: 145 – 215 mm
- Weight: 72 g
Case Dimensions
- Case Size (L × W × H): 55 × 51.2 × 16.9 mm
Power & Accuracy
- Battery Life: Approx. 2 years on CR1220
- Accuracy: ±15 seconds per month
Functions
- World Time: 29 time zones, 48 cities + Coordinated Universal Time
- World Time Features: Daylight saving on/off, home city/world time city swapping
- Stopwatch: 1/1000-second stopwatch
- Stopwatch Measuring Capacity: 99:59'59.999"
- Stopwatch Measuring Modes: Elapsed time, lap time, split time
- Other Stopwatch Features: Speed from 0 to 1998 units/hour, distance input from 0.0 to 99.9, Mach indicator for speed exceeding 1225 units/hour
- Timer: Countdown timer
- Timer Measuring Unit: 1 second
- Countdown Range: 24 hours
- Countdown Start Time Setting Range: 1 minute to 24 hours, in 1-minute and 1-hour increments
- Timer Other Feature: Auto-repeat
- Alarm: 5 daily alarms with 1 snooze alarm
- Hourly Time Signal: Yes
- Light: LED light with auto light switch, selectable illumination duration of 1.5 seconds or 3 seconds, afterglow
- Light Color: LED: Amber
- Calendar: Full auto-calendar to year 2099
- Time Format: 12/24-hour format
- Regular Timekeeping: Analog: 2 hands, hour and minute, with hand moving every 20 seconds; 1 dial for speed
- Digital Timekeeping: Hour, minute, second, p.m., month, date, day
Water Resistance
- Water Resistance: 200 meters
Summary
The G-SHOCK GA100BEG-1A is a bold GA-100 Series analog-digital watch with a striking black and electro green design, Shock Resistant and Magnetic Resistant construction, 200-meter water resistance, world time, 1/1000-second stopwatch, countdown timer, 5 daily alarms, LED light, full auto-calendar, and an approximate 2-year battery life. It is a strong choice for anyone looking for a durable everyday G-SHOCK analog-digital watch with a sharp electric visual style.
For more details, visit the official CASIO website here.
Warranty
All our G-SHOCK watches include the official manufacturer’s warranty for peace of mind and long-term protection.
▶︎ Processing Time & Shipping Policy
▶︎ Refund Policy
We only carry G-SHOCK USA products.
Unfortunately, we DO NOT ship internationally.
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Explore Your Favorite G-SHOCK Watches
Explore our current selection of G-SHOCK watches. If you don’t see your preferred model, check the G-SHOCK USA website, note the model number, and contact us via email or phone(415-567-2400) to place your order. Ask about our special deals!
Please note:
- We only carry G-SHOCK USA products.
- Unfortunately, we DO NOT ship internationally.
Trusted Since 1967
Our owner, Asuka Saito, is certified by both Gemological Institute of America (GIA) and Cultured Pearl Association of America (CPAA), and we also have a GIA-certified appraiser on staff. Asuka is also a color specialist, certified as a TC Color Therapist and Sensational Color.