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Casio unveils Pro Trek WSD-F30, a rugged smartwatch that lasts up to 30 days on a charge | VentureBeat
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Casio Announces Release Date for PRO TREK Smart WSD-F30 Smartwatch for Outdoor Enthusiasts | Casio USA
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Casio PRO TREK WSD-F20 61.7mm Orange Case Black Classic Buckle Smartwatch - (WSD-F20RG) for sale online | eBay
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Amazon.com: Casio Pro Trek Touchscreen Outdoor Smart Watch Resin Strap, Black, 27 (Model: WSD-F30-BK) : Everything Else
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The Casio ProTrek Smart WSD-F20: Introduction, Basics, Startup - Time and Tours, w| Gerald Zhang-Schmidt
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