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Regulation of a CHS A3186 movement with Weishi 1900

Watch-Out

Known Member
1/2/20
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Dear Aficionados,

I bought myself a W1900 and last night I have been regulating several watches. It was my very first time and due to some vids I could easily regulate 6 watches to superb values. (most difficult was opening the case back ;-) ). Funny fact: I opened a Sub and in the caseback was a tiny screw... Firstly I thoug it was something from the case back but then I recognized it belonging in the movement.. After 5 min search I screwed it in the empty place and it was fine..

As I was in that special mood you need to be in workin with watches, I opened my GMT 2 A3186 CHS.

Opposite to the other watches had regulated this movement I couldnt see the little hammers where I can regulate beat and time error... How can I access them and would it be an easy operation or better leave it...

Here some pics (the movement looks cool, maybe you can give some words on it)

Heres a pic of the results of the TG.


 

Raddave

Most Delicious of all Nipples!
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This looks to be a fake bridge , remove the screw , the arms might be under that , if not , remove the autowind module , (let the watch down first)

youll be able to access them that way


6dxD8.jpg
 
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Watch-Out

Known Member
1/2/20
136
33
28
SUPPORTER of RWI
Thanks. That was only one part.. I had to remove the rotor with its components. Pretty stupid to build it hidden under two elements?? Ok was only to screws, but keep in mind it was my first time. Under the rotor plate there were the two.. I played around and played with both... maybe thats not the best idea, but I did it. After some hour of experimententing i got everything back in position. I even achieved a better result in terms of rate and beat error. Amplitude declined...?

And now, like 45 min later the watch increases its speed? Why..? Sometimes 6 sec. sometimes 30-35 sec?