Casio PRW-B1000 Series White Mountaineering PRW-B1000WM-1

The Casio PRW-B1000 Series White Mountaineering PRW-B1000WM-1 Black is the second and most ambitious collaboration between Casio's PRO TREK outdoor watch line and White Mountaineering, the Tokyo fashion label founded by Yosuke Aizawa in 2006 after his formative years under Junya Watanabe at Comme des Garçons, a brand built on the philosophy that the field in which we wear clothes is all outdoors. Where the first PRO TREK and White Mountaineering partnership worked on the entry-level PRJ-B001, this second chapter graduates to the premium PRW-B1000 platform, delivering a collaboration that operates at the highest tier of Casio's outdoor instrument category in both material specification and design ambition. The case structure combines flame-retardant bio-based resin with a black ion-plated stainless steel bezel at 50.8 x 45.8 x 14.9mm, while the band is constructed from solid titanium H-link bracelet stock with the same black ion-plating treatment and a slide-adjustable three-fold clasp accommodating wrist sizes from 150 to 205mm. Titanium delivers the weight efficiency that matters on long outdoor expeditions, and the full matte black execution gives the watch a tactical restraint that reads as sophisticated urban as well as field-ready. White Mountaineering's signature translucent triangle print pattern extends from the dial to the bezel, connecting both panels in a geometric language that is unmistakably the brand's own. The matte black dial carries phosphorescent white hour markers and hands for exceptional dark readability, with a red seconds hand providing the only chromatic accent across the entire composition. Technical credentials include the full PRW-B1000 sensor suite of digital compass with bearing memory, barometric pressure and altitude measurement, and temperature sensing, alongside Multiband 6 radio calibration across six global time signal stations, Bluetooth connectivity via the CASIO WATCHES app, and Tough Solar power generation. The sapphire crystal with anti-reflective coating and 100-meter water resistance complete a package designed to perform in demanding real-world conditions.

For the serious outdoor enthusiast who also wants a watch that functions as a considered design object in everyday contexts, the PRW-B1000WM-1 is the most compelling PRO TREK collaboration Casio has ever produced, bringing White Mountaineering's design intelligence to a genuinely capable outdoor instrument platform.

The Casio PRW-B1000 Series White Mountaineering PRW-B1000WM-1 Black is available at a retail price of $500.