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In 1994, the only ever Memovox and the world's first wrist alarm watch with a caseback made of sapphire crystal (with the hand- winding caliber K914) was released. In parallel with the K918 an alarm watch with automatic winding and gong was offered - not as Memovox, but as Master Reveil. Both calibres were encased in stainless steel or red gold ...
In 1913 the company began producing wrist watches, followed by eight day alarm clocks in 1915. [ 4 ] Following Walter's retirement in 1927, management continued with William's sons Edward Ingraham II (president from 1927-1954) and Dudley Ingraham (president from 1954-1956).
In the following years, Kienzle was the first company to present a quartz travel alarm clock. [7] In 1986, Kienzle developed the first solar watch with light conditions and a polycrystalline solar element. In the early 1990s, Kienzle developed the most water-resistant watch in the world which was resistant up to 12,000 metres.
Throughout its existence, Nelsonic produced pop-culture-themed wrist-watches for children and young adults. The chronograph digital watches, typically made of molded plastic, invariably featured an alarm and utilized LCD screens to display the time for their wearers. [5]
Lanco watches are still considered to be of very high quality, and they are traded today as vintage watches. A number of Lanco watches are famous, such as the "Flying Saucer" or the "Lanco-Fon", a manual-wound watch with an alarm function that was released in the 1960s. When Lanco was revived in the 1970s, more variety was added to the product ...
It is also possible for quartz clocks and watches to have their quartz crystal oscillate at a higher frequency than 32 768 (= 2 15) Hz (high frequency quartz movements [4]) and/or generate digital pulses more than once per second, to drive a stepping motor powered second hand at a higher power of 2 than once every second, [5] but the electric ...
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