Jump to content

My mecanical watch stops spinning after 30 minutes?

Akalit
 Share

Recommended Posts

Akalit New Member

Akalit

Posted
Posted

Hi everybody !

I'm really new to this fabulous hobby that is watchmaking and I would like to know if somebody is capable of helping me 

(I can make some mistakes in english and i am sorry for that).

Now my problem is:

I wanted to make a service for an old ''Lorsa caliber P62''. Everthing was fine until the moment when I winded up for the first time after the rebuild. The movement can't hold 1 hour!
Then I decided to take a look at the mainspring: Nothing bad but I ordered a new one with the right dimensions just in case. After receiving my new mainspring, same results:
It's spinning 10/20/30mn and suddenly slows down and slows downs smoothly, until it completly stops.
I really don"t know what can happen? Everything seems to spin freely, no dust or over oiling...

All that said, if I really wanted to wear this watch and not worry about, I won't be there to ask some help: I have a local watchmaker on my city.
But I really want to understand and fix this watch by myself. It's a 20$ watch that I bought to disassemble and re-assemble for the sake of science! If she's broke, it's ok but if I can find what the issue is, It's fabulous!

So here it is! If anybody had already faced this strange issue, let me know how can I fix it or what can cause this ! 

Thank you very much and have a nice day !

Link to comment
Share on other sites
Neverenoughwatches Distinguished Member

Neverenoughwatches

Posted
Posted (edited)
17 minutes ago, Akalit said:

Hi everybody !

I'm really new to this fabulous hobby that is watchmaking and I would like to know if somebody is capable of helping me 

(I can make some mistakes in english and i am sorry for that).

Now my problem is:

I wanted to make a service for an old ''Lorsa caliber P62''. Everthing was fine until the moment when I winded up for the first time after the rebuild. The movement can't hold 1 hour!
Then I decided to take a look at the mainspring: Nothing bad but I ordered a new one with the right dimensions just in case. After receiving my new mainspring, same results:
It's spinning 10/20/30mn and suddenly slows down and slows downs smoothly, until it completly stops.
I really don"t know what can happen? Everything seems to spin freely, no dust or over oiling...

All that said, if I really wanted to wear this watch and not worry about, I won't be there to ask some help: I have a local watchmaker on my city.
But I really want to understand and fix this watch by myself. It's a 20$ watch that I bought to disassemble and re-assemble for the sake of science! If she's broke, it's ok but if I can find what the issue is, It's fabulous!

So here it is! If anybody had already faced this strange issue, let me know how can I fix it or what can cause this ! 

Thank you very much and have a nice day !

Hiya matey. It could be many things. How specific in time is the stopping of the watch ?  Is the stopping of the watch in dial up position only ? How do you restart the watch ? With a shake ?. One posible cause could be a very poor beat error that is allowing the watch to run a short lengrh of time only. Do you own a timegrapher to check this ? There are other ways if you do not have one. 

Edited by Neverenoughwatches
  • Like 1
Link to comment
Share on other sites
Akalit New Member

Akalit

Posted
  • Author
Posted
24 minutes ago, Neverenoughwatches said:

Hiya matey. It could be many things. How specific in time is the stopping of the watch ?  Is the stopping of the watch in dial up position only ? How do you restart the watch ? With a shake ?. One posible cause could be a very poor beat error that is allowing the watch to run a short lengrh of time only. Do you own a timegrapher to check this ? There are other ways if you do not have one. 

Hey thank you for your quick answer !!

 

So,

the watch is stopping in winding position but the crown can spin freely without noise or grip on both position. I don't think the probleme is here.

I restart the watch by re-winding it, but since the movement previously stopped, the balance wheel stays ''stuck'' (It didn't start spinning right after the winding). Then I try to move and touch some of the gears and it start spinning again!! It really depend on what I carefully touch with the tip of my screwdriver. I don't think it is a problem of a piece that can be bend or stuck by dust, because when I remove the whole barrel everything is spinning smoothly: I even can move easily the balance wheel with a little bit of air or by turning the movement on itself.

I sadly do not own a time grapher. If it was a beat error, what can be the cause? I mean, what, in the watch, do not allow the movement to run 24 hours? The pallet fork?

My theory is a mis-alignement of gears but like i said, everything moves freely and if something was bend, the movement shouldn't spin at all, right? Not 30min and then stop... Right now the movement is spinning for about 1 hour now but I know it gonna stops soon...

 

Maybe I am all wrong and I still have a lot to learn (for sure) but from my understanding of basic mecanics, there's something I don't get!

 

Thank you very much again for trying to help me 🙂

 

Link to comment
Share on other sites
Neverenoughwatches Distinguished Member

Neverenoughwatches

Posted
Posted
1 hour ago, Akalit said:

really depend on what I carefully touch with the tip of my screwdriver. 

Hi. If i can give you my first piece of advice before trying to solve the movement issue.  As beginner it is best not to do any prodding or poking inside a movement with something hard like a screwdriver or tweezers. The ideal material to use would be some rodico that you can roll up very thin, if not that then a small piece of plastercine or putty but bere in mind this can leave a tiny oil residue. If neither of those then the  very fine tip of an artists paintbrush.

Link to comment
Share on other sites
Nucejoe Distinguished Member

Nucejoe

Posted
Posted
1 hour ago, Akalit said:

the watch is stopping in winding position but the crown can spin freely without noise or grip on both position. 

Sounds like the fault is in the keyless.

Would it wind if you try winding through the ratchet wheel screw?   Be careful, avoid full wind and forcing the screw, one turn (360 degrees) will do. 

Regds

 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • AlanB
      Gilding after silver soldering

      By AlanB · Posted

      When faced with say a pocket watch bridge which is cracked, silver soldering to repair is often the only option (hopefully someone wasn't there before hand with soft solder). I can generally do this succesfully and tidily with a small torch and miniscule pieces of silver solder, but on parts which were mercury amalgam gilded the heat can have have a deleterious effect on the finish.   I keep wondering if there's a good way to refinish these - and despite having the needful items would rather avoid using the mercury process.   In the past for electronic work I've gold plated PCBs but this involved gold potassium cyanide solution, which also doesn't realy belong at home. I've read that there are now safer alternatives but couldn't find more detail (and importantly how similar are the results to amalgam gilding, since I wouldn't want to refinish the whole watch). Pointers would be very welcome (and yes, I know solutions containing gold won't be cheap!) Alan
    • Neverenoughwatches
      Can anyone identify what this is? Part Two

      By Neverenoughwatches · Posted

      The first one is an Unruh max stake for pushing out staffs
    • JonC
      Can anyone identify what this is? Part Two

      By JonC · Posted

      Ok so with the great answers for my previous question may I ask what these two attachments are used for. The one with the red knob is I assume used for hand setting the seconds hand? Jon      
    • Zedster
      Roamer Searock Crystal problem

      By Zedster · Posted

      According to Cousins site I need to look at document G22 as I think I need an ATGB at 304 but I cant find this size in G22 doc. The last thing I want to do is order the wrong one😳  Unless I cant see the wood for the trees 😆 I could be looking at the wrong style, I assume its classed as Round plastic Armed  https://www.cousinsuk.com/product/wide-ring-gold-atgb
    • JonC
      Dial feet removal

      By JonC · Posted

      When building a new Watch I have tended to use a file to remove the remnants of dial feet that are not needed as many dials come with four feet to accomodate different movements, but this can be a bit messy so now I use this with a great deal more precision as you can use an appropriate bit for the job and keep it very localised.      
×
×
  • Create New...