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
How to set time on Casio G-Shock GA-2000 / 5590
CASIO G-SHOCK GA-2000S-1A (5590) ANALOGUE & DIGITAL DISPLAY WATCH Pre Owned. | eBay