Time-Tee’s
Citizen Cosmotron GX Tuning Fork Watch 1970s
Citizen Cosmotron GX Tuning Fork Watch 1970s
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Here is your chance to pick up a rare Citizen Cosmotron GX. This is a lesser known model from Citizen that is powered by a tuning fork movement! Citizen used Bulova 218 tuning fork movements in the Hisonic range but the Cosmotron is best known for the hybrid electronic balance watches. The GX though has a tuning fork movement with only one coil that is on the left hand side of the movement making it their own design as the 219 Bulova was on the right. Most of the components are still the same though. You really do not see these watches often and in some ways this is a reluctant sale but it was bought to repair and pass on so I must stick to my plan! Tuning fork movements have a super smooth tick to the second hand and a audible hum as it vibrates.
Watch has a stunning green dial that really catches the light, a proper 70s blast of colour. The only down side is there is a small scratch on the dial by the 1 o'clock position, not caused by me I will say. Watch has a day and date complication where the date has quickset but the day does not. Please see my video in the listing to show how that all works.
New genuine Citizen crystal has been fitted to show of that dial in all its glory. Movement has been stripped down, cleaned and rebuild and phased and now it keeps very good time indeed.
Case has been taken back to its bare components, scrubbed, cleaned and lightly polished before being assembled again.
I have fitted the watch on a mesh bracelet but I also like it on a green rally strap so I am offering both in this sale so you can change over as you wish for a different look.
New battery fitted a 344. Unsure the longevity of these as tuning forks to like to use up their batteries! some take 12 months some can last only for 3-4. Case back is pressed on so either get someone to fit it for you if you cant do it yourself. (or contact myself)
Watch is good to go and live on for many more years. Please look at all photos and videos to aid in your purchase decision.
Dimensions
Case Diameter 37mm
Thickness 11.40mm
Lug Width 18mm
Lug to Lug 40mm
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Let customers speak for us
from 28 reviewsI love the 70's and I love this watch, case shape and dressy white dial. Delivered with a nice Croc. embossed leather strap and protective film on the spotless dial glass. I am very happy that this is now my watch, it's clearly a keeper.

I love my new Seiko, judging from your Web pictures and the description I knew something special was to be sent to me and oh my what a dial!, it looks like nothing I have seen before, like brown or golden colors on a bark structure, it plays with the light give all these colors.
Bracelet is beautiful smooth with its small links. The whole watch is simply a winner and I am so happy to be the owner :-)

Tshirt is top quality. Will return for another soon.

Wonder watch
Great review
Order and shipping was perfect

Another great and historical time piece from the seventies, looks great on once again thank you Time - Tees.

It's my second watch from Time-tee's and again it's a wonderful piece, thanks Mike.

It is a stunning watch and looks great on the wrist,many thanks to time -Tees.

Quality timepiece

A great watch and looks brilliant and all working as it should.

I've been watching Mike's YouTube videos for around 18 months which sparked my interest in vintage watches. This is my first vintage watch and I love it. The condition is fantastic and looks fantastic on my wrist. My wife has now put it away for my birthday next month. Can't wait to be a year older ! Thanks Mike

A lovely time piece, absolutely stunning and quick delivery, very well packed

The T-shirt was perfect and love your stuff on YouTube!

Ultimately, there's not much to say.
The watch matches the description exactly and is in perfect condition.
I could have bought it directly from the manufacturer, but now I have a piece of the canal that I love to watch so much to calm down after a long day of work.
Great memory.
All the best, Mike!!!
You are a great person.
