ETA SA EPSON-YN56

The EPSON-YN56 is an automatic movement manufactured by ETA SA in Japan, based on the Orient caliber F6922. It features 22 jewels, hacking seconds, and hand winding, with a 40-hour power reserve and day-date complications protected by Seiko Diashock shock resistance. The movement is produced in several versions indicated by suffix letters (YN56A, YN56B, YN56C), with YN56A being the original iteration. This caliber appears primarily in Orient and related brand models.