Casio has confirmed the February 2026 launch of its second collaboration with Japanese fashion label White Mountaineering. The new model is called the Pro Trek PRW-B1000WM-1 and sits at the high end of Casio’s outdoor watch lineup.
The watch features a complete titanium construction with a black ion-plated H-link bracelet and a stainless steel bezel. The 50.8 × 45.8 × 14.9 mm case combines flame-retardant bio-based resin with metal components, weighing 120 grams. Design elements include matte black dial with phosphorescent white indexes, red seconds hand, and White Mountaineering’s signature triangular pattern printed on the dial and etched into the bezel.
The titanium bracelet uses a slide-adjustable three-fold clasp accommodating wrist sizes 150-205 mm. Technical specifications include 100-meter water resistance, −10°C temperature rating, and sapphire crystal with anti-reflective coating.
Power comes from Tough Solar charging, delivering six months of runtime under normal use or 24 months in power-saving mode. Timekeeping relies on Multiband 6 radio calibration and Bluetooth connectivity, maintaining ±15 seconds monthly accuracy without synchronization.
Casio’s Triple Sensor provides comprehensive environmental data: compass bearing across 16 directions with memory function, altitude measurement from −700 to 10,000 meters including trend graphs, barometric pressure monitoring (260-1,100 hPa) with alerts, and temperature readings between −10°C and 60°C.
Additional functionality includes world time across 38 zones, calculated sunrise/sunset times, stopwatch, countdown timer, five daily alarms, and double LED Super Illuminator for dial and digital display visibility. The screw-lock crown enhances durability.
Both brand logos appear on the case back. Casio packages the watch in recycled materials. The PRW-B1000WM-1 targets outdoor enthusiasts seeking premium materials and advanced sensors in a tactical aesthetic matching White Mountaineering’s design philosophy. The watch retails for ¥140,800, approximately $900.
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