G-Shock's?new GA2100 series contains watch models?that take on the octagonal?shape that was originally part of the popular DW5000C collection.?An analog-digital Japanese quartz?movement?lays inside the?minimalistic design?all while?withholding the level of toughness G-SHOCK has come to be known for.
A super-strong?resin case and strap are reinforced?by carbon fibers?which allow the case to sit at a mere 11.8mm of thickness, which is?as thin as a G-SHOCK combo model can get.

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• 48.5??45.4??11.8mm Black Resin Case
• Tough Resin Strap
• Red Analog-Digital Dial w/ Negative LCD Display
• Shock Resistant
• Mineral Glass
• 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)
• World time: 31 time zones (48 cities coordinated universal time), daylight saving on/off, Home city/World time city swapping
• 1/100-second stopwatch
• Countdown timer
• 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
  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 ?? 2