Jump to content

Ulysse Nardin vintage watch running fast

cduke

By cduke
in Watch Repairs Help & Advice

 Share

Recommended Posts

cduke WRT Addict

cduke

Posted
Posted

Hello All,

I have a vintage Ulysse Nardin watch from 40s-50s that is running very fast, about 2 hours in every 24 hour cycle.  The watch has been demagnetized, and the balance spring checked. The balance regulator has little effect on the watch speed.  Is this watch a candidate for a good cleaning or is there possibly another problem to check?

Thanks for the help.

Link to comment
Share on other sites
jdm Distinguished Member

jdm

Posted
Posted
17 minutes ago, cduke said:

The watch has been demagnetized, and the balance spring checked.

I would check it again, look at the timegrapher pattern, and even at the sound waveform, because likely the spring is touching.
In any case a 70 years old watch is always  a great candidate for servicing.

  • Like 1
  • Thanks 1
Link to comment
Share on other sites
clockboy Distinguished Member

clockboy

Posted
Posted

It may be a simple fix. If the H/spring is not inside the regulator adjusting pins it will run just very fast and moving the regular arm will make no difference whatsoever. Well worth a check. 9 out of 10 times running fast is an escape issue. If confident it is not the escape a loose cannon pinion will be the issue. 

  • Thanks 1
Link to comment
Share on other sites
Nucejoe Distinguished Member

Nucejoe

Posted
Posted

Can you post picture of HS from top of the cock view.

Oscilator runs fast if the active length of HS is shorter than should be, which happens  if the last circle of the coil get stuck behind stud  or boot of the regulator arm, another possibility is if two outer circles get inside the regualtor slot. 

I gather you mean hairspring look Ok by " hairspring checked" .  It can look alright but run fast if too short or stiff.

 

  • Thanks 1
Link to comment
Share on other sites
cduke WRT Addict

cduke

Posted
  • Author
Posted
On 7/10/2020 at 2:27 PM, clockboy said:

It may be a simple fix. If the H/spring is not inside the regulator adjusting pins it will run just very fast and moving the regular arm will make no difference whatsoever. Well worth a check. 9 out of 10 times running fast is an escape issue. If confident it is not the escape a loose cannon pinion will be the issue. 

The spring was sitting at the bottom of the adjusting pins but was not seated between them.  I did move the spring to within the pins and it has performed better but is still running fast.  I will try moving the regulator to retard the balance wheel a bit as see .

Thank you all for helping me as I stumble through the basics!

Link to comment
Share on other sites
Nucejoe Distinguished Member

Nucejoe

Posted
Posted

I move the regulator arm all the way back to or as near as you can to the stud holder   (you will be letting all available length of the hairsrping to oscillate,  almost " free sprung" ) a healty hairspring should run slow then( in full length) and regulate somewhere in between. In case it still ran fast, we should look for the reason.

Good luck.

  • Like 1
Link to comment
Share on other sites
HSL Distinguished Member

HSL

Posted
Posted
46 minutes ago, cduke said:

The spring was sitting at the bottom of the adjusting pins but was not seated between them.  I did move the spring to within the pins and it has performed better but is still running fast.  I will try moving the regulator to retard the balance wheel a bit as see .

Thank you all for helping me as I stumble through the basics!

If the spring is low down it's a sign of the HS isn't flat either. 
If you move the regulator arm and it has no effect the hairspring for sure couldn't be right between the regulatur pins.

  • Like 1
Link to comment
Share on other sites
cduke WRT Addict

cduke

Posted
  • Author
Posted
49 minutes ago, HSL said:

If the spring is low down it's a sign of the HS isn't flat either. 
If you move the regulator arm and it has no effect the hairspring for sure couldn't be right between the regulatur pins.

After moving the spring between the guides, it has slowed down considerably.  I imagine there are multiple issues with this movement.

Thanks again for all your great comments and help!

  • Thanks 1
Link to comment
Share on other sites
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • mikepilk
      Setting lever spring

      By mikepilk · Posted

      I would harden and temper (to a light blue). It's so easy to do and only takes a couple of minutes.
    • Waggy
      Movement holder made with 3D printer

      By Waggy · Posted

      Here is the insert ring for rectangular or elliptical movements: Note that the length is the side with the stem cut out on the spreadsheet (in the picture below this is 15.15: Here is the fake pdf file, again you need to convert to .zip after download to access the FreeCAD and 3mf files. Rectangular insert disc.pdf    
    • JohnR725
      Omega cal. 565 - low amplitude

      By JohnR725 · Posted

      as you took the mainspring out what did it look like? It's amazing how much amplitude you can get if the mainspring actually has the proper shape. last week I was doing a 12 size Hamilton and was very much surprised with the beautiful back curvature the mainspring had. Then the watch had a really nice amplitude the group would be so proud it was 350 until I dropped the lift angle down to 38 that drop the amplitude quite a bit below 300. then with the beautiful back curve it still had really nice amplitude the next day. I really wish all my mainspring's look like this as the watch had beautiful amplitude the next day. So many of the aftermarket pocketwatch Springs I see now do not have anything resembling a back curve may be a slight curve and that's about all. They still work but they just don't work as nice as a properly made spring. then Omega as all sorts of nifty technical documentation unfortunately every single corner is watermarked with where it came from who downloaded it etc. very paranoid company. On the other hand I will snip out images like from the document on recycling a mainspring barrel. for instance here's the section on what your mainspring should look like. water damaged a lot of times means rust was there rust on this watch?
    • RichardHarris123
      Without Our Forum

      By RichardHarris123 · Posted

      I wondered that?
    • Neverenoughwatches
      Without Our Forum

      By Neverenoughwatches · Posted

      I dont understand why a patreon membership would have limited places ??
×
×
  • Create New...