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Amazon.com: Casio GA2000-1A2 G-Shock Men's Watch Blue/Black 51.2mm Carbon/Resin : Clothing, Shoes & Jewelry
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GA-2000 Carbon Core Guard G-Shock tutorial - how to setup & use ALL the functions on the 5590 module - YouTube
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Amazon.com: Casio GA2000-2A G-Shock Men's Watch Blue 51.2mm Carbon/Resin : Clothing, Shoes & Jewelry
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