Tag Archives: Citizen Cosmotron 4840

Today’s Watch – Citizen Cosmotron, 4-480279

Another Cosmotron today, and one of the more unusual ones – the movement is the 4840 date only version of the 0840 calibre. The unusual bit is the crystal, since it has the ‘Citizen Electronic’ logos and minute markers printed … Continue reading

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Today’s Watch – Citizen X8 Cosmotron, 4-480040

I noticed yesterday that there was a watch ready to run with today’s date, so effectively it chose itself 🙂 This is an X8 Cosmotron from January 1971, with the date version of the 0480 movement, the 4840. This model, … Continue reading

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Cosmotron from 1971 – What’s So Unusual?

Citizen made many different Cosmotron models, an interesting hybrid movement that became obsolete well within 10 years of its launch in 1966.  Here’s one, case number 4-480279, from November 1971: A passing glance might suggest it’s a straightforward enough rather … Continue reading


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