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Advice and parts for a JLC Master Quartz, Cal.352

tinkerer

By tinkerer
in Watch Repairs Help & Advice

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tinkerer New Member

tinkerer

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Posted (edited)

Hi all,

A few years ago, I bought a JLC Master Quartz in a non-working condition (with a 352 movement).  I want to get it running now and am looking for some parts to breathe some life into it.  I did apply some power at the time, but no go, so removed the electronics and tried the continuity of the motor.  It is open circuit, and somewhat small to see where the problem would be.  The electronics seem to be fine as they produce a pulse as required.

Where would I find a motor for this movement, as I cannot find one anywhere..  Is this a common failure, as I have heard plenty of electronics going pop, but never a motor?

Any help would be great.  Also, would anyone have any documentation for this movement?

Thanks.

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jdm Distinguished Member

jdm

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Posted
59 minutes ago, tinkerer said:

A few years ago, I bought a JLC Master Quartz in a non-working condition (with a 352 movement). 

Can you post a clear picture so that people can tell what it is instead of relying on the designation given? That is practically alway needed when posting questions. 

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I want to get it running now and am tried the continuity of the motor.

You mean continuity of the coil? That is the only part of  the "motor" that one can test electrically.

 

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JohnR725 Distinguished Member

JohnR725

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Even though your Watch is really really really common or not a picture would be nice. The reason for a picture is that it makes things more apparent. For instance this is a quartz watch I wonder if we can adopt a modern coil for this watch? After all all the coils look similar?

In the absence of a picture I get stuck googling making a wild guess like does your watch look Like the watch the first link?

Now if it looks like the first link we can make a wild guess like now to grasp what were talking about something different we've discussed something similar before that's found that the second link. Otherwise if your watch doesn't look like the first link the second link probably isn't going to help you.

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&0&2uswk&Girard-Perregaux_352

https://www.watchrepairtalk.com/topic/14198-girard-perregaux-c641-quartz-movement/

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tinkerer New Member

tinkerer

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Apologies folks,  I was a bit too keen without dropping a few pictures into the mix.  The movement is a little different from modern quartz movements where the coil is generally contained within the board and the poles of the motor are quite visible.  This movement has a self contained motor that is fixed to the movement and is connected to the board by two spring connectors.  

Chris Radek has rewound one of these little motors for the same reason, but my capabilities would be somewhat less than Chris's.  I take my hat off to Chris, as it is some seriously fine work.

20210411_193901 1r.jpg

Inked20210411_194136_LIr.jpg

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    • PeterS
      Stem removal after fitting hands

      By PeterS · Posted

      Yes, the seconds hand is the longest and goes almost to the edge of the dial. I can’t quite picture it how you do it on the rubber pad
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      Battery

      By Murks · Posted

      A don't think so it leaked or damaged it because the watch itself works it just the buttons ain't working not connecting with the circuit board have taken more pictures of where the buttons makes contact with the circuit board.
    • Neverenoughwatches
      Stem removal after fitting hands

      By Neverenoughwatches · Posted

      I think what peter means oh is once he has fitted the hands and  checked for  alignment if them and that they dont foul, how does he then hold the movement to remove the stem in order to case up. The dial cannot be laid on a cushion or in a movement holder as the hands will get damaged. This can be quite tricky for a beginner, what i do is  to stand the movement on edge on a rubber pad so it doesn't slip. Hold the top edge with one finger then my dominant hand uses 3 fingers to press the stem release and flick out the stem. See below peter, leave off the second hand as this is the longest and gets caught the most, then fit it once the stem is out. Alternatively place the movement in one of the cup style holders, i imagine this is what they are designed for. They only touch the very edge of the dial.  
    • PeterS
      Stem removal after fitting hands

      By PeterS · Posted

      Yes I understand that. What I’m asking is, after the hands have been fitted, it’s been checked that the hands do not touch etc. then I need to remove the stem to fit the movement in the case. I have the push type, I need to turn it upside down and push the setting lever post and pull the stem out. But of course the dial and hands are in place and I have a glossy dial with lume dots and I do not want to cause any damage while it’s upside down pushing on the post of the setting lever.
    • oldhippy
      Stem removal after fitting hands

      By oldhippy · Posted

      You have answered your own question. You just push the setting lever nipple in or if its the screw in type unscrew it a little. You should always remove any hands and the dial before putting it in your movement holder. 
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