This is a special watch designed for firefighters, which fills the gap of professional chronograph watches in the field of fire protection. The overall shape is inspired by the fire safety valve, which means the valve of life that races against time. It boasts diving-grade sealing, high temperature resistance and waterproof function better than ordinary watches. It can be automatically dried, dehumidified and defogged, which can effectively help firefighters perform operations, improve work efficiency, and provide reliable protection for firefighting.