OverviewUpgrade 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.
Lightweight and durable resin strapsRound dial with dual arm analog movementDigital display and day subdialWatch features:
Shock resistant with Carbon Core Guard structure
12/24-hour format
Regular timekeeping:Hour, minute, second, pm, date, day
World time with 38 time zones and on/off daylight saving time
Full auto-calendar (to year 2099)
Hourly time signal & 5 multi-function alarms
Countdown timer and stop watch
LED light for the face and LED backlight for the digital display (1.5 seconds or 3 seconds), afterglow
Button operation tone on/off
Power Saving (display goes blank to save power when the watch is left in the dark)
Mobile link (Wireless linking using Bluetooth®)Secure and adjustable buckle closureCase Dimension: L 48.5 mm × W 45.4 mm × H 11.9 mmCasio G-shock signature brandingComes packed in a branded tin caseCASIO WATCHES app 
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