The outer contour is circular with a diameter of 8.5 cm. At a distance of 2 mm from the outer perimeter, a yellow border of 2 cm width is embroidered around the edge, which is surrounded internally and externally by a dark blue distinctive line of 1 cm width and four notches forming an imaginary square with a diagonal length of 9 cm.

Inside this, on a red background, the center is depicted and within a black circle with a diameter of 4 cm, featuring a distinctive dark blue border of 1 cm, there is a representation of a firefighter in motion, colored dark blue and measuring 3.5 cm, who holds an axe in his right hand and a hose with a fire extinguisher in his left hand. Behind him is a triangular flame depicted with seven tips that has a thin red line, an inner band of yellow color, and the inner section of which is red.

Surrounding the outside of the circle is a distinctive yellow line of 1 cm width. Above the illustration, it is inscribed in yellow letters "FIREFIGHTER" and below "MECHANICAL NAVIGATOR" in a dark blue hollow inscription.

• On the left, a traditional ship's wheel with a gear in the center, measuring 1.5 cm and colored dark blue, is depicted.
• On the right, a crosswise firefighter axe measuring 1.7 cm and a firefighter hose with a section of a fire extinguisher measuring 2 cm are depicted.