Certina DS-2 automatic watch

Iconic Certina DS-2 automatic watch with a rare dial variation. Crystal is in good condition, no major scratches or cracks. Dial has a few small dots near the Certina logo. Case has signs of age and use and the caseback has an engraving from the year -74. Crown is original and the leather strap is used. Service history is unknown, but the watch works great. Date changes and the watch is running approximately +- 20 seconds per day.