J89

Calibre J89 is an alarm movement from Junghans produced in the 1950's.

Advertised as "Minivox", Cal. J89 was unusual in that it used a single barrel for both the alarm and timekeeping functions of the watch. The alarm was set using a crown at 2:00 and turned on or off using a switch at 4:00.

Description: Manual winding movement Functions: Alarm function Data: 18,000 A/h Production period: 1950's