Casio G-Shock Analog Digital Solar Powered Men's Watch GAB2100MF-1A

The matte black bezel and band contrast stylishly with touches of vivid blue, pink, and yellow on the hands, hour markers, and dial marks, transporting you to a virtual world. Playful and bold, these designs will crush in any fashion scene. Choose your favorite of five timepieces — the GA-100, GA-110, or GA-700 with large case; the GA-B2100 with octagonal bezel plus Bluetooth and solar charging; or the GX-56 digital watch with large case.

Basic Information 

• Case size (L× W× H) 48.5 × 45.4 × 11.9 mm
• Weight 52 g
• Case and bezel material Carbon / Bio-based resin　
• Band Bio-based resin band
• Construction Shock Resistant, Carbon Core Guard structure
• Water resistance 200-meter water resistance
• Power supply and battery life: Tough Solar (Solar powered)

Smartphone Link/App Connectivity Feature

• Smartphone Link feature Mobile link (Wireless linking using Bluetooth®)
• App Casio Watches
• App connectivity feature 
• Auto time adjustment,
• Easy watch setting,
•  Approximately 300 world time cities
• Time & place
• Reminder
• Phone finder

 Exterior

• Glass Mineral Glass
  
• Compatible band Size 145 to 215 mm
• other :Neobrite

Watch Features

• World time World time
• 38 time zones (38 cities + coordinated universal time), city code display, city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping

 Stopwatch

• 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, lap/split time

 Timer

• Countdown timer
• Measuring unit: 1 second
• Countdown range: 60 minutes
• Countdown start time setting range: 1 second to 60 minutes (1-second increments)

 Alarm/hourly time signal

• 5 daily alarms
• Hourly time signal

 Light

• 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)

 Light color

• LED: White 

 Calendar

• Full auto-calendar (to year 2099)

 Mute feature

• Button operation tone on/off

Energy saving feature

• Power Saving (display goes blank to save power when the watch is left in the dark)

Battery display/alert

• Battery level indicator

Run time

• Approx. battery operating time:
• 7 months on rechargeable battery (operation period with normal use without exposure to light after charge) 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)

 Accuracy

• Accuracy: ±15 seconds per month (with no mobile link function)

 Other features

• Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
• 12/24-hour format
• Date/month display swapping: Day display (days of the week selectable in six languages)
• Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode) 
  Hour, minute, second, am/pm, month, date, day
  Vibration on/off