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
Casio G-shock (5611)_premi | Caliroots.com
Sold at Auction: Casio, G-Shock Casio 5611 Ryo Ishikawa Wristwatch
Casio G-Shock GA-2100-1A1 Casioak 5611 analog shipped from USA in hand | eBay