![Casio G-Shock Carbon Core Guard Digital Analog Black Dial Quartz GA-2000-1A9 GA2000-1A9 200M Mens Watch - Walmart.com Casio G-Shock Carbon Core Guard Digital Analog Black Dial Quartz GA-2000-1A9 GA2000-1A9 200M Mens Watch - Walmart.com](https://i5.walmartimages.com/asr/2ad1d74f-143c-4668-9ed3-499fad459fae.873bf79abdfbe6900fa1407464e18431.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Casio G-Shock Carbon Core Guard Digital Analog Black Dial Quartz GA-2000-1A9 GA2000-1A9 200M Mens Watch - Walmart.com
![CASIO G-SHOCK 5590 GA-2000 Carbon Core Guard Round Water Resistant 20bar B3532 | WatchCharts Marketplace CASIO G-SHOCK 5590 GA-2000 Carbon Core Guard Round Water Resistant 20bar B3532 | WatchCharts Marketplace](https://cdn.watchcharts.com/listings/53c14269-9940-4141-8953-27fb5b3e2e59.jpg)
CASIO G-SHOCK 5590 GA-2000 Carbon Core Guard Round Water Resistant 20bar B3532 | WatchCharts Marketplace
![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 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](https://preview.redd.it/just-bought-my-first-g-shock-gm-2100mf-love-the-way-it-v0-dhkrcml6nbm91.jpg?width=640&crop=smart&auto=webp&s=d10edb725e45b20dbe4f69fcc0265a380ab733a4)
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 Carbon Core Guard G-Shock tutorial - how to setup & use ALL the functions on the 5590 module - YouTube GA-2000 Carbon Core Guard G-Shock tutorial - how to setup & use ALL the functions on the 5590 module - YouTube](https://i.ytimg.com/vi/X5Y-463zyRE/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLBfkg1OhSwCtZi4S1JO331WGC8FHA)