Fiery and bold G-SHOCK watches glowing with flames of awesome color.
G-SHOCK is all about taking on challenges, and the vivid colorful gradation of the Flame Inside line puts this blazing passion front and center.
The GA-2100 with octagonal case, the design brings in motifs of billowing smoke for the band and features a brightly burning dial in flames of blues or oranges.

• Case / bezel material: Carbon / Resin　
  
• Resin band
  
• Shock Resistant
  
• Neobrite
  
• Mineral Glass
  
• Carbon Core Guard structure
  
• 200-meter water resistance
  
• 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)
  
• LED: White
  
• World time
  
• 31 time zones (48 cities + coordinated universal time), daylight saving on/off 
  
• 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 (Hands move out of the way to provide an unobstructed view of digital display contents)
  
• Full auto-calendar (to year 2099)
  
• 12/24-hour format
  
• Button operation tone on/off
  
• Regular timekeeping:
  
• Analog: 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 X 2
  
• Size of case : 48.5 × 45.4 × 11.8 mm
  
• Total weight : 51 g