While maintaining the iconic octagonal form of the GA2100 inherited from the very first G-SHOCK, the GAB2100 now also has Smartphone Link and Tough Solar power capabilities. It also employs the Carbon Core Guard structure to preserve a similar fit on the wrist as the original model.

SPECIFICATIONS

• Case size (L× W× H): 48.5 × 45.4 × 11.9 mm
• Weight: 52 g
• Case / bezel material: Carbon / Resin　
• Band: Resin Band

Construction

• Shock Resistant
• Carbon Core Guard structure
• Water resistance
• 200-meter water resistance
• Glass: Mineral Glass
• Shock-resistant structure
• 20-bar water resistance
• Tough Solar (solar powered)
• Smartphone Link
• Hand shift feature
• World time (38 cities)
• 1/100-second stopwatch
• Countdown timer
• 5 daily alarms
• Double LED light (Super Illuminator)
• Time & Place log:
  Pressing a button on the watch records the current date, time and position on a map. Useful as an activity log.
• Reminder setting: The watch will remind you of up to five upcoming events, which you set within the app.
• Automatic time adjustment (four times a day)
• World time for over 300 cities
• Home time/world time switching
• Timer/alarm setting
• Phone finder