Casio Men's ProTrek Manaslu All-Black DLC Multi-Band 6 Tough Solar with Triple Sensor Ver.3 PRX-8000YT-1JFProduct Highlights The base model PRX 8000, the only person in Japan to conquer the towering 14 peaks of 8000m around the world, incorporates advice from PRO TREK Ambassador Mr. Higashiyama Takeuchi. In harsh conditions during an 8000m peak ascent, time and measurement values are crucial information, hence the black dial features large white indexes and hands for easy visibility. Other markings are deliberately subtle in color and placement to make it