A Jet movement is a ring rotor one that I really like a lot. Rumor has it that Citizen chose to replace this movement with a central swinging rotor, even though the circular rotor one was of a better quality, because the later was easier and cheaper to produce. Others say that the Jet were not as reliable, but I strongly doubt that, and others believe that the change was due to a growing trend for slimmer watches that were not a perfect match for this kind of movements. The Jets was produced starting from October 1961 up to about 1967. The first was a simple three hands non date one and the last, the Auto Dater Seven, with a date and day feature. The most impressive one is the 39 Jewels Super Auto Dater.
In fact the first automatic Citizen calibre was a “normal” one with a centrally attached swinging rotor that was made for only about 2 years. The Jet (so, the second type of Citizen automatic movements) are all beating at 18,000 bph and have a power reserve of about 45 hours. These movements, as stated , are automatic but (most of them) can be manually winded too. The rotating ring has 4 or 6 screws. The thing I like the most it the beautiful sound that the rotor is making when rotating, smooth, loud, mechanic.
Here you can find a few watches powered by these amazing movements.
For more information follow the links below:
Citizen Super Auto Dater 39J 150m Professional SADS52801-Y
Citizen Jet Autodater movement – ring rotor
Citizen Jet (Super Jet) Auto Dater
First JET movement (1962) – Para Water Professional
Citizen Super Jet Auto Dater parawater X case
Citizen Jet Autodater 120 m – the first diver
The last JET movement (1966) – Auto Dater Seven
Citizen AutoDater Diver 40m ADOS 3001-DM
Citizen 200m Auto Dater Skin Diver
Citizen Newmaster – Autodater 21 jewels
Vintage Citizen case finishing
Vintage Citizen Watches 
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Pingback: Citizen Jet Autodater 120m – the first diver – Vintage Citizen Watches
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I have a watch i would like to identify!
Citizen watch co
3620 895550 SMW
5091672
36-7826 –> 5
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Hello Beth! Could you post some pics?
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Give me an email address that will let me upload pictures to it please!
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Upload them to a hosting site like http://www.tinypic.com and add the link here. 😉
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On Jun 24, 2017 11:02 AM, “Vintage Citizen Watches” wrote:
> Vintage Citizen Collector commented: “Hello Beth! Could you post some > pics? ” >
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Pingback: Citizen Super Jet Auto Dater Para Water SADS 51202-Y – Chronographes
Just how loud are these movements? I just purchased one and I love the watch, it seems to be working great, but the sound is very loud and I am concerned that it needs a service or is on it’s last legs,It makes the sound both when hand winding and when the rotor spins.It sounds to me like a tinny dry, scraping metal sound, thus my concern
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They can get really loud, indeed. 🙂 Any way a service is needed for such an old watch if you want to wear it a lot.
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just leaving a reply because I forgot to subscribe to new posts/comments
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😉
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