The popular Swatch Automatic GRAN VIA dates from 1992, the model is from the first series of mechanical watches from Swatch in the 90s. You do not need a battery, the movement is wound by the movement of the arm. The opening in the upper part of the dial allows you to see the mechanical movement. The watch is water resistant and has a mechanical movement.
This Swatch SAG100 is in 100% pristine condition, never removed from the box and in perfect running condition.