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Irregular movement functionning

BlueHarp
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BlueHarp WRT Addict

BlueHarp

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Posted

Hello,

It happens several times to me that a watch doesn't work regularly. I mean that it goes smoothly for a while, and then starts slowing down. I suppose that is doesn't come from the balance wheel, but from the wheel train or the hands, but is there a logical process to check all of that?

Thank you!

Neverenoughwatches Distinguished Member

Neverenoughwatches

Posted
Posted
6 minutes ago, BlueHarp said:

Hello,

It happens several times to me that a watch doesn't work regularly. I mean that it goes smoothly for a while, and then starts slowing down. I suppose that is doesn't come from the balance wheel, but from the wheel train or the hands, but is there a logical process to check all of that?

Thank you!

Are you saying that the watch runs ok for a little while after servicing but then starts to lose time ?

BlueHarp WRT Addict

BlueHarp

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Posted

This is a watch that has been given to me as I am learning to disassemble and reassemble watches. They do not always work after that 😄, but I am more and more successful.

Nevertheless, the latest watch I've reassembled is working, but it seems that it sarts loosing time after a while, and this is not regular. I suppose there might be some friction somewhere, but I don't know where to start with.

watchweasol Distinguished Member

watchweasol

Posted
Posted

One assumes its a leweled watch. One thing to try is to clean it and rebuild it with no lubrication and see how it goes/ That being a temporary measure as it may be a lubrication problem, wrong oil  too much oil  Mainspring greased too much  oil getting in the wrong place (balancespring etc). there are many reasons. Check the results of the above then if ok do a bit more like , clean mainspring and barrel grease and oil reassemble and check   .Then add the train wheels and oil then and check.  By doing it in small increments and checking you are tracking down the problem and gaining experience in dismantling and re building.  Its a bit of a long winded job  but it will give you confidence.    

JohnR725 Distinguished Member

JohnR725

Posted
Posted
2 hours ago, BlueHarp said:

This is a watch that has been given to me as I am learning to disassemble and reassemble watches. They do not always work after that 😄, but I am more and more successful.

A picture would be nice of the watch and or a description better then it's a watch.

2 hours ago, BlueHarp said:

Nevertheless, the latest watch I've reassembled is working, but it seems that it sarts loosing time after a while, and this is not regular. I suppose there might be some friction somewhere, but I don't know where to start with.

Then for diagnostics I always ask about prior history of the watch? Like when you receive the watch what was the condition it was in wasn't running before you started disassembling or? In other words are we dealing with a pre-existing condition or are we dealing with something that you've done?

It's why I usually recommend people purchase a clone of the 6497 pocket watch as it's relatively cheap brand-new running. Then we know the condition of the watches running is not running and having problems after it's reassembled then we know the problem was something you did. But here we don't know about a pre-existing condition.

Then A timing machine is really handy for diagnosing problems.

 

Nucejoe Distinguished Member

Nucejoe

Posted
Posted
5 hours ago, BlueHarp said:

 it goes smoothly for a while, and then starts slowing down. 

How long is     " a while"  ?                  HOURS ?           DAYS ?

 I use to face the same problem with pin pallet Oris,  asked for advice, Nickelsilver pointed out that it is a lubricant issue, took me months to realize my Moebious oil must have been  at least twenty years old when I boubht it, if not a fake oil to begin with.

Do you oil fork jewels?  

Do you oil fork pallets or escape teeth? 

When it stops put some lighter fluid on above named jewels, also generously  on balance cap stones, does it then run again? 

Rgds

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BlueHarp WRT Addict

BlueHarp

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Thank you for your answers, paticularly the explanations about trouble linked to lubrication. Il looks like the problem was there. It works now 🙂

The watch is a Favre Leuba Duomatic.

I think that proper lubrication will be the next step in my "aprenticeship", and tuning the balance wheel the following one. But I will need to invest in a timegrapher ...

Thanks again

Neverenoughwatches Distinguished Member

Neverenoughwatches

Posted
Posted
12 minutes ago, BlueHarp said:

Thank you for your answers, paticularly the explanations about trouble linked to lubrication. Il looks like the problem was there. It works now 🙂

The watch is a Favre Leuba Duomatic.

I think that proper lubrication will be the next step in my "aprenticeship", and tuning the balance wheel the following one. But I will need to invest in a timegrapher ...

Thanks again

This hobby is a lot about tools, buying them when you need to, making them when you can. Two of my first major buys were a timegrapher and a scope, invaluable gamechangers imo.

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