Upgrade the retro look you love with the octagonal GA-2100 line, which inherits the design concept of the very first G-SHOCK, but now with Smartphone Link and Tough Solar power.

Carbon Core Guard Structure
A new carbon core guard structure protects the module by enclosing it in a carbon case. The case is made of fine resin embedded with carbon fibers for outstanding strength and crack resistance.

Features

• Case / bezel material: Carbon / Resin
• Resin Band
• Shock Resistant
• Mineral Glass
• Carbon Core Guard
• 200-metre water resistance
• Tough Solar (Solar powered)
• Mobile link (Wireless linking using Bluetooth®) - via CASIO WATCHES APP

Specifications

• Double LED light
  LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
• LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
• World time
  31 time zones (48 cities coordinated universal time), daylight saving on/off, Home city/World time city swapping
• 1/100-second stopwatch
  Measuring capacity:
  00'00''00~59'59''99 (for the first 60 minutes)
  1:00'00''~23:59'59'' (after 60 minutes)
  Measuring unit:
  1/100 second (for the first 60 minutes)
  1 second (after 60 minutes)
  Measuring modes: Elapsed time, split time, 1st-2nd place times
• Countdown timer
  Measuring unit: 1 second
  Countdown range: 24 hours
  Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
• 5 daily alarms
• Hourly time signal
• Hand shift feature
• Full auto-calendar (to year 2099)
• 12/24-hour format
• Button operation tone on/off
• Regular timekeeping
  analogue: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day)
  Digital: Hour, minute, second, pm, month, date
• Accuracy: ±15 seconds per month
• Approx. battery life: 3 years on SR726W × 2
• Case size (L× W× H) - 48.5 × 45.4 × 11.9 mm
• Total weight : 52g