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Casio's latest PRO TREK smartwatch has a dual-layer display and exclusive outdoor app features - NotebookCheck.net News
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Amazon.com: Casio Men's PRO TREK Stainless Steel Quartz Watch with Cloth Strap, Green, 30.5 (Model: PRG-600YB-3CR) : Clothing, Shoes & Jewelry
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Amazon.com: Casio Men's PRO TREK Stainless Steel Japanese-Quartz Watch with Resin Strap, Black, 23.77 (Model: PRG-600-1CR) : Clothing, Shoes & Jewelry
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