Junghans J820.5

The Junghans J820.5 is a worldtimer movement based on the Sellita SW331-2. Found in the Meister Worldtimer collection, it features a 24-hour zone disc instead of a traditional GMT hand, allowing display of all 24 time zones simultaneously through cutouts in the dial. The movement may have extended power reserve of up to 56 hours if equipped with Sellita's optimization barrel (2021+).