Tag Archives: Citizen Cosmotron X8

Additions to the X8 Cosmotron Page

Posted on February 5, 2013 by sweephand

For the technically minded I’ve now included scans of exploded views of the two types of movement (08 & 78).

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X8 Cosmotron Page Update

Posted on February 5, 2013 by sweephand

I’ve just added a bit more information in the 78 series section on the Cosmotron Special. This describes the function of the button at 8 o’clock found on these models, with a link to a video showing it in action. … Continue reading →

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X8 Cosmotron Page – First Updates

Posted on January 24, 2013 by sweephand

As a result of comments and information after uploading the page, I’ve made a few amendments and additions. The amendments mainly relate to the the first paragraph, where I referred to Citizen’s ‘world’s first’ claim in their technical guide. I’ve … Continue reading →

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New Page Published – The X8 Cosmotrons

Posted on January 23, 2013 by sweephand

I’ve just published a new page on the Citizen’s electro-mechanical line of watches made between 1966 and about 1975. For me they are a fascinating bit of watch history, a technology developed just before, and therefore rendered very quickly obsolete by the quartz … Continue reading →

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This Week’s Featured Watch #40 – the Cosmotron X8 (0840)

Posted on September 18, 2012 by sweephand

Citizen’s pioneering first ‘Electric Watch’ was launched in 1966, and used the 25 jewel 0800 electro-mechanical movement, running at 18,000 beats per hour (see the Chrono Master model here: https://sweep-hand.org/2011/07/11/this-weeks-featured-watch-10-the-electric-watch/) As the technology developed Citizen introduced the next version in 1970, now … Continue reading →

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This Week’s Featured Watch #33 – The Cosmotron GX

Posted on May 21, 2012 by sweephand

In 1969 Citizen’s electro-mechanical watches, introduced in 1966, became known as ‘Cosmotrons’. The technology in these combined new printed circuitry and a battery with a relatively conventional balance and hairspring. But one Cosmotron was an exception to this convention – … Continue reading →

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Cosmotron Battery Life

Posted on February 10, 2012 by sweephand

Battery life for Citizen’s electro-mechanical watches was advertised as 12 month. I have run one of mine constantly to see what period of time I would get. Here’s the watch, from 1975: It had a new battery fitted by the … Continue reading →

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This Week’s Featured Watch #18 – Cosmotron 7806

Posted on December 29, 2011 by sweephand

This was my first Cosmotron, and was almost a ‘just curious’ buy. But as soon as I received it I was rather hooked and I have bought a few more since. I’ll be doing an article on the Cosmotrons in … Continue reading →

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This Week’s Featured Watch #10 – The Electric Watch

Posted on July 11, 2011 by sweephand

To reflect my intention to provide a representative sample of Citizen’s vintage watches over these early weeks of the blog, this week I’m featuring their first electric model. Launched in March 1966 not only was this Citizen’s first such model, … Continue reading →

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