The PRT-B50YT-1 is equipped with a smartphone link function and quad sensor for measuring step count, direction, altitude/barometric pressure, and temperature.
PRT-B70T-7 & PRT-B70YT-1: Pro Trek's fishing series gets a titanium band
Casio Pro Trek PRT-B50-1ER
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BUY Casio Protrek Quad Sensor Bluetooth Black Titianium Watch PRT-B50YT-1 - Buy Watches Online
BUY Casio Protrek Quad Sensor Bluetooth Black Titianium Watch PRT-B50YT-1 - Buy Watches Online
Casio Men's Pro Trek Bluetooth Connected Quartz Sport Watch with Resin Strap, Black, 22.2 (Model: PRT-B50-1CR) : Clothing, Shoes & Jewelry
PRTB50YT-1, Black Watch - PRO TREK
Black Steel Metal Replacement Watch Band Fits Casio Pro Trek PRTB50 PRT-B50
Casio PRO TREK PRTB50YT-1 Quad Sensor Bluetooth Connected Watch review - The Gadgeteer