- Brand: Casio
- Type: Wristwatch
- Department: Men
- Movement: Quartz
- Features: Alarm, World Timer, Dual Time
- Reference Number: GA100C-8A
- Gender: Men's
- CaseMaterial: Resin
- Dial: Grey
- Color: Grey
- UPC: 079767981396
- BandWidth: 20 mm
- Calendar: Date, Day, Month, Year
- CaseColor: Black
- CaseShape: Round
- CaseThickness: 17 mm
- Crystal: Mineral
- HarmonizedCode: 9102.19.40
- Size: 51 mm
- WaterResistant: 200 meters
- Collection: G-Shock
- Crown: Push and pull