1976
World's First Quartz Alarm Clock
This alarm clock used a noise-free, high-power sweep motor to provide its alarm function. Monthly error within ±15 seconds.
| Name | World's First Quartz Alarm Clock |
|---|---|
| Time/Period | 1976 |
1976
This alarm clock used a noise-free, high-power sweep motor to provide its alarm function. Monthly error within ±15 seconds.
| Name | World's First Quartz Alarm Clock |
|---|---|
| Time/Period | 1976 |
