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Time-Tee’s

CItizen Cosmotron 1975 Electronic Balance Watch

CItizen Cosmotron 1975 Electronic Balance Watch

Regular price £149.00 GBP
Regular price Sale price £149.00 GBP
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Here is a really nice clean vintage Citizen Cosmotron.  This type of watch was not around for long and as a result I think they are a worthy addition to a watch collection.  These were out at the same time as the very first quartz watches,  the movement in this one is a 7804. It is a machanical movement with a balance wheel but instead of a mainspring and barrel it has a battery. The battery goes though a circuit with a transistor to a coil. The coil is sandwiched between two wheels on the balance wheel, one wheel has magnets on them  (yes magnets in a mechanical watch!) the coil pulses with the current and the magnets are opposite poles which makes the balance swing. The movement of the balance then transfers its power down the train of wheels, eventually to the hands, in effect moving the opposite way to any conventional mechanical watch which goes from mainspring to balance wheel.  This regulated pulse makes the watch run efficiently and more accurately.  Also gives a sweep second.  The joy of these is you can take them off for weeks at a time and they will jsut keep going, ever ready to wear! 
This model has a stunning white dial that has some almost herringbone texture to it that can only be seen in certain light conditions. I have never seen one like this before.  Elegant pin striped hands and indices give it a classic look. Crystal is original, it has some minor scratches that you can hardly see so I have kept it on the watch for originality. 
The watch party piece is its quickset of day and date.  Done by gravity. Hold the watch in your hand and push in the crown and the date will change.  turn the watch upside down so 6 it at the top and push the crown in again and the day wheel will change!  it has both Kanji and English as options. 
Watch has been cleaned and oiled and new gaskets and is ready to wear!  I have fitted to this fine mesh strap which I think finishes it really well.
Case has been cleaned, sterilised and lightly polished to give back its shine.  This one is in exceptional condition for 50 years of age. 

Dimensions

Case Diameter 37.4mm

Thickness 12.5mm 

Lug Width 18mm 

Lug to Lug 42mm 

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