Caliber: Regulator – Junghans J800.5 (ETA 2824
link base), Automatic – Junghans J800.1 (ETA 2824 base), Small seconds – Junhangs J101.66 Mega radio-controlled quartz movement. Winding: Automatic (regulator and automatic), Mega movement uses a batteryChronometer
link Certified: NoAdditional Details: Mega J101.66 scans all five radio time calibration frequencies, time
link setting, and time zone changes via Junghans Mega app with date correction (perpetual) and to-the-second accuracry.