1964
Hi-Alarm
Japan’s first battery-powered alarm clock based on a transistor clock. Magnetic forces drive the balance and a spring is used for the alarm bell. Under normal-use conditions, the watch can run for one to two weeks without winding the spring.
Name | Hi-Alarm |
---|---|
Time/Period | 1964 |
Additional information | The battery life is 500 days. The alarm bell rings for at least two minutes. Equipped with a push mechanism to stop the ringing. |