GA-2000 Carbon Core Guard G-Shock tutorial - how to setup & use ALL the functions on the 5590 module - YouTube
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Manual For Casio G-Shock GA-2000E-4DR Analog-Digital With Carbon Core Guard - Module 5590 | PDF | Timer | Daylight Saving Time
Just bought my first g-shock (GM-2100MF). Love the way it looks but concerned it's a fake. The internal module number (during testing mode) shows up as 5590 instead of 5611. Anybody else
GA-2000 G-SHOCK 5590 Set Time, Date, Home City,12/24H , Key operation tone, DST, Light duration Demo - YouTube
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