Torsten has sent us this funky looking watch. The movement is from the first generation of mass produced ESA/ETA quartz movements. It runs, but drains the battery within hours.
The movement looks very nice for a quartz watch.
I remove the circuit board first so not to damage it.
I now focus on the dial side, as I do not want to damage the day and date wheels.
I remove the plate that holds the day disk and hour wheel in place.
The movement does not look that dirty, but at closer inspection there is some dirt lying around.
Here I have removed the plate that holds the date ring in place. Iām extra carful when handling the plastic parts as they are 40+ years old and I do not know how delicate they are!
I now remove the setting mechanism.
The date driving wheel is damaged and I will have to order a new one.
The cap jewel is very dirty and is definitely contributing to the massive power consumption.
Here I have removed the cap jewel and the top pivot of the rotor is completely gunked up.
Here you can see the rotor and coil setup next to each other.
Now time to remove the rest of the gear train.
The Train plate removed revealing the gear train.
The largest quartz rotor I have ever seen.
Everything has been cleaned and is ready to put back together. Note I have not run the plastic pats thought the cleaning machine, as I do not want to expose them to the cleaning chemicals, The same goes for the rotor that is magnetic and would collect any metallic fragment it gets in contact with.
I start by putting the gear train back together.
I then put the setting mechanism back in place.
The date mechanism back in place.
I now put the plastic frame back on the movement.
And last but not least put the circuit board in place.
I have put the clean movement back in the case.
Just got to love that giant quartz crystal on the dial and the 70ās dial design. Now ticking as it should;)
What type of battery does this movement take? I just picked up a cheap one on a flyer on Ebay and want to see if the movement will even run, but not sure which battery is needed.
Thank you!
I have absolutely no clue I’m afraid – this is a long time ago …
ESA 9180/1 takes a 301. Also, I’ve seen photographs of 9183s with 301 cells installed.
My ESA9183 had a battery MAXELL LR44.
Equivalent is Duracell code: SR44 (357 – 303)
V357/V303/SR44W/SR44SW
Hello,
do I have to consider something special when assembling the calendar?
Have a get to repair.
In this the Day Date Driving Wheel (2555) was broken (broken spring).
There was someone else before. Maybe he did that wrong before. I do not want to make the same mistake. I ordered the part at new.
According to my observations, everything meshes together at the switching point.
If something does not fit, the same thing could happen again.
You have already done that. Clear up me.
Hmmm – I don’t quite get that. Send me an email in German to workshop@watchguy.co.uk, and we can take it from there.
Hello. Where are You found The parts of this watch? I need of complete circuit. Where can I find it? Thanks.
EBay with a lot of luck.
Nice quartz movement! I didn’t realize that you were also working on quartz movements, or is it only on special ones?
We don’t really do quartz movements, unless it’s something very vintage. Or if we owe you a favour š
Mitka, Christian,
As always thank you for a job well done. The watch is back on my wrist on a seventies Ralley strap looking glorious.
Cheers, T.
Very cool watch! Comparing this movement to present-day quartz movements shows the evolution of these movements. Very interesting.
Rod
I can’t find anything information on Vehns watches, where were they made?