The completeness of Songtuo's features in outdoor watches is the most commendable. It is the No. 1 brand of outdoor watches, meaning "direction" in Finnish, and was used by the Finnish army during World War II to orient people in the snow and ice. It has now become the world's largest manufacturer of precision instruments and compasses, and has produced the best compasses in the world. The outdoor watches are mostly water-resistant to between 30 and 100 meters, and the elastomer strap resists prolonged wear and sweat soaking. However, in the evaluation, it can be seen that the accuracy of Songtuo at 100 meters of water is not good. For recreational diving enthusiasts, choosing an outdoor watch is more practical than a professional mechanical watch and is a cost-effective choice.