As Jaeger-LeCoultre advanced their Memovox alarm calibres and introduced advanced automatic movements like the Cal. 815, their competitors set about producing their own automatic alarm movement. Lemania was charged with the task, and introduced Cal. 980 in 1969. It featured state of the art features like a Glucydur balance, self-compensating hairspring, and a free-spinning central rotor. This single rotor wound a single barrel which drove both timekeeping and alarm functions.
Unlike the Jaeger-LeCoultre movements, Cal. 980 could be set with to-the-minute accuracy. Because both hour and minute of the alarm could be set independently, watches with this movement were often branded Dual Alarm.
Cal. 980 was wound and set using a pull-piece at 2 00 and the crown at 4 00