Jump to content
  • 0
Mattaphysics

A couple older ASs' <==(not intentional)

Question

I got these two in an auction. I did pretty well cleaning them up and getting them back running but they're running really fast. Looks like the amplitude on them is way low but I don't have a timing machine so I cannot be sure. I know it's probably a hairspring issue but I cannot be too sure. Any ideas? I appreciate this forum more than anyone can know and want to personally thank everyone because this place is a true treasure trove!

 

There's a 7 jewel AS 1187/94 and an AS 1361N that was automatic but it was a pain in the AS, haha watch humor, plus I prefer hand winding anyway ( though now the morning starts with about 15 mins of winding all my watches.82a1bc616c4581a602777fc1caed8a8c.jpg3c2e8d42b1c5a90aa46ebe1be5071c16.jpgd35cecd526e6e736271fd38f58a9c0ab.jpg30010e14224cd2b6528d013fe6b5531a.jpg54facf0c6cc9dc06c875a5bd5a4b797d.jpg0b84db2da96541c146a0016716a8d656.jpgd73188dbe934b2ec407d54c2fd5d34d3.jpgc5b243c081c7cbadda4da6770c1d4c7b.jpg36a95e2a770b86aa5f9a6553d5587f39.jpg

 

Sent from my Z956 using Tapatalk

 

 

Share this post


Link to post
Share on other sites

6 answers to this question

Recommended Posts

  • 0

Your very good close up photos indicate this is definitely a hairspring issue causing the running fast problem as @nickelsilver says.

A hairspring should form a nice concentric circle. If one of the 'circles' touches an adjacent one it has the equivalent effect of shortening the spring and thus make the balance swing faster. This equals your watch running fast. Whilst contamination (e.g. oil or dirt) can cause this, your close ups indicate your hairspring has been damaged in some way.

In this case you either have to replace or repair. It's worth attempting the latter but you'll need to be delicate and patient. Mark has done a good video at: https://m.youtube.com/watch?v=idO5elKgFMA.

Share this post


Link to post
Share on other sites
  • 0

Just a straw poll on this subject; what does everyone use to clean their (watch) hairsprings? I’ve read I should be using one-dip but haven’t invested in any yet.


Sent from my iPhone using Tapatalk

Share this post


Link to post
Share on other sites
  • 0
26 minutes ago, Pip said:

Just a straw poll on this subject; what does everyone use to clean their (watch) hairsprings? I’ve read I should be using one-dip but haven’t invested in any yet. 

One-dip is an excellent product for hairspring cleaning, the active ingredient is trichloroethylene which is a powerful industrial degreser.

I have though switched to pure 99.3% solvent from an bulk supplier instead of the Bergeon 2552, a quick analyzes in the lab says they are practically the same.

Share this post


Link to post
Share on other sites
  • 0
One-dip is an excellent product for hairspring cleaning, the active ingredient is trichloroethylene which is a powerful industrial degreser.
I have though switched to pure 99.3% solvent from an bulk supplier instead of the Bergeon 2552, a quick analyzes in the lab says they are practically the same.

Thanks. I think that trichloroethalyne is dry cleaning fluid, I’ll have to double check that but if it’s the same I would hazard a guess that dry cleaning fluid may be a touch cheaper than one-dip!


Sent from my iPhone using Tapatalk

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×