The Pro Trek PRW-31YT-7JF is a deluxe PRW-30 model featuring a titanium band and sapphire crystal. The blue accents around the dial and buttons are inspired by K2 Granite, a.k.a. ‘K2 Jasper” and “raindrop azurite,” which is a white granite found at the foot of the K2 mountain range that features distinctive spots of blue azurite.
The titanium band and stainless steel bezel are treated with titanium carbide. Major features include Tough Solar power, Multi-Band 6 auto radio time-sync, 100-meter water resistance, Triple Sensor (altimeter-barometer, compass, thermometer), sunrise/sunset time, and full auto LED backlight. The watch is a relatively compact Pro Trek model at 45.2 millimeters wide and weighs 96 grams.
The PRW-31YT-7JF is a May 2021 release in Japan, with a tax-included price of ¥80,300. A similar model from 2020, the black and red Pro Trek PRW-30YT-1JF Firefall Edition, was only released in Japan. The PRW-31YT-7JF has the same module (3490) as the PRW-30YT-1JF and other PRW-30 models, and the “31” designation may be due to the titanium carbide treatment.
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