ETA SA PE50

The PE50 is a quartz chronograph movement manufactured by ETA SA under the Sunon brand. It features a central chronograph seconds hand with a 60-minute counter, date display, and 24-hour indicator. The movement uses an SR920SW battery and allows independent hand calibration through the chronograph pushers. Production has been discontinued, though the movement saw notable use in replica versions of the Omega Moonswatch.