Junghans Mega
JUNGHANS MEGA is the world's first radio-controlled wristwatch with hands. It was made in 1991 by the German watchmaker Junghans.[1]
Description
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The watch has a part gold-plated steel case. It has a white face with two gold hands and a rectangular LCD. It is protected by a circular, scratch-resistant glass. The brown leather band holds the antenna for getting time signals. The watch is equipped with time zone adjustment, a calendar (day, date, month), digital seconds, internal time memory, signal reception indicator and a transmitter call button.
Technical Specifications
[change | change source]The MEGA has a radio receiver and wrist antenna for getting time signals on 77.5 kHz (longwave).[2]
The watch syncs with the time signal at 2:00 and 3:00 AM. If there are problems, it tries again every hour until 6:00 AM.[2] The Junghans MEGA is accurate to 1 second in 1 million years.
The watch has a w605 quartz movement with a 32 kHz base. It uses a 3V lithium battery.[2]
History
[change | change source]In 1985, Junghans made the first radio-controlled desk clock.
In 1990, Junghans made the technology smaller to fit the digital wristwatch MEGA 1.[3] In 1991, they made the analog version MEGA with hands.
References
[change | change source]- ↑ "Neuheiten-Katalog 1991/92, Junghans Uhren GmbH" (PDF). junghansarchiv.de. JUNGHANS. Retrieved 25 January 2023.
- ↑ 2.0 2.1 2.2 Radio-controlled wrist watch (operating manual). Schramberg: JUNGHANS UHREN GmbH. 1991. pp. 22–30. 42.712-0226/0591.
- ↑ "Mega 1". The Royal Museums Greenwich. Retrieved 26 January 2023.