J89: Difference between revisions
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Latest revision as of 15:12, 23 July 2021
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.
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