ETA SA A07-231

The A07-231 is an automatic chronograph movement manufactured by ETA SA, based on the Valjoux 7750. It measures 24.0mm in diameter, beats at 28,800 vph, and features hacking seconds, quickset date, and Incabloc shock protection. The cam-operated chronograph displays elapsed time via central seconds hand and subdials at 3 and 6, with a date window at 4:30. Produced from 2005 to 2021, it was also sold as the Longines L696 and L705 and was discontinued when ETA stopped selling movements outside the Swatch Group.