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Amazon.com: Casio Men's 'Pro Trek' Resin Outdoor Smartwatch, Color:Orange (Model: WSD-F20-RGBAU) : Clothing, Shoes & Jewelry
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Amazon.com: Casio Men's PRO Trek Stainless Steel Quartz Watch with Resin Strap, Green, 25.2 (Model: WSD-F20A-GNBAU) : Clothing, Shoes & Jewelry
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Casio Pro Trek Smart WSD-F30 smartwatch has a smaller case, better power management, and improved dual-layer display
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