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
5611 looks great : r/gshock
Casio G-Shock GA-2100-1A1 Casioak 5611 analog shipped from USA in hand | eBay
CASIO G-SHOCK 5611 GA-2100 Water Resistant 20bar Carbon Core Guard ALM SIG B1738 | eBay