Vintage Swatch Che Guevara watch (non working)

Unique collectible Swatch watch. Features a Che Guevara design on the face. Cuban flag colours on the band. Plastic casing and band. Pre-owned condition. Unfortunately, the watch is not working. Perhaps someone whith better Swatch knowledge that I have can get this watch working again. It is one of the more sought after Swatch collectible styles.