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Getting A Watch In Beat Question.

clockboy

By clockboy
in Watch Repairs Help & Advice

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clockboy Distinguished Member

clockboy

Posted
Posted

Yesterday I serviced a vintage watch (AS1286) & it was 2.6 ml out of beat. I adjusted by moving the hairspring a touch via a screwdriver & unfortunately I touched the spring and misshaped it and it took a long while to reshape.

The question is will I get the same result if I move the roller table as this looks a lot easier & less risky.

Geo Distinguished Member

Geo

Posted
Posted

You should be able to get it in beat my moving the roller table relative to the balance staff.

I don't really understand what you did with the screwdriver that bent the spring?

clockboy Distinguished Member

clockboy

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  • Author
Posted

You should be able to get it in beat my moving the roller table relative to the balance staff.

I don't really understand what you did with the screwdriver that bent the spring?

I had the balance staff on a tack went in with my smallest screwdriver & twisted the collet. As I retrieved my screwdriver I caught one of the coils & bent it. It,s a very small spring & it took an age to get it back to the correct shape.

I HATE HAIRSPRINGS :crazysmile:

  • Like 2
SSTEEL Distinguished Member

SSTEEL

Posted
Posted

I share your pain, hate hair springs.  If the balance has a regulator lever, you should be able to adjust the beat independently from the timing lever.

Michael WRT Addict

Michael

Posted
Posted

On the older movement type, where to remove the balance and hairspring, you have to pull out that horrible little brass tapered rod, which grips the hairspring into a tiny hole. What do people do to adjust the beat? Removing that horrible little brass tapered rod several times, or dangling the hairspring and trying to inject a screwdriver to the collect, I have found both options equally as dangerous (or should I say disastrous).  Is there a different method?

clockboy Distinguished Member

clockboy

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  • Author
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On the older movement type, where to remove the balance and hairspring, you have to pull out that horrible little brass tapered rod, which grips the hairspring into a tiny hole. What do people do to adjust the beat? Removing that horrible little brass tapered rod several times, or dangling the hairspring and trying to inject a screwdriver to the collect, I have found both options equally as dangerous (or should I say disastrous).  Is there a different method?

Removing the brass pin is easy just use stiff tweezers & leave it attached to the balance bridge for stability. Re-fitting is however more difficult.

The method I use is a pin vice & fit a nice new pin which come in nice long lengths so easy to manipulate & then snip off to the correct length when fitted.

clockboy Distinguished Member

clockboy

Posted
  • Author
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I watch this yesterday . I don't now if you have seen it before?  

Thanks Rogart yes I have seen the vid & very good it is too. He does make it look easy

dadistic Distinguished Member

dadistic

Posted
Posted

Having a supply of wedge pins would help me a lot too, as I've discovered that they make quite nice little rockets. I'm not sure were to get them, though, my usual stateside suppliers don't seem to have them. Any suggestions as to a source?

 

Thanks!

 

David S - who is currently confusing aerospace and horology.

bobm12 Distinguished Member

bobm12

Posted
Posted

 

He does make it look easy

But is not... :) I'm still on my practice hairsprings and boy, what a mess!

 

Cheers,

 

Bob

dadistic Distinguished Member

dadistic

Posted
Posted

Having a supply of wedge pins would help me a lot too, as I've discovered that they make quite nice little rockets. I'm not sure were to get them, though, my usual stateside suppliers don't seem to have them. Any suggestions as to a source?

 

Thanks!

 

David S - who is currently confusing aerospace and horology.

 

Actually, that's not true. Otto Frei has assortments.

 

David S - who is currently just confused

clockboy Distinguished Member

clockboy

Posted
  • Author
Posted

Actually, that's not true. Otto Frei has assortments.

 

David S - who is currently just confused

Also it,s a simple job to file down a brass pin to fit if the correct size is not in your store cupboard.

  • Like 1
agoldflam Member

agoldflam

Posted
Posted

I definitely understand that feeling of destroying the hairspring. I recommend removing the balance complete and rotating the collet to get it in beat. Takes a while sometimes but safer.

I don't recommend rotating the roller because the balance was statically poised with the roller in that position. Rotating it will change timing results.

I find filing brass and then rolling it between two anvils makes pins pretty easy. Also I prefer to put a flat on one side of the pin to help hold the hairspring tighter in the stud. And I have a pair of modified tweezers where one end is longer than the other this helps installing and removing.

Through watchmaking I restore connections in people's lives!

  • Like 1
Geo Distinguished Member

Geo

Posted
Posted

Very good advice Agoldflam, I forgot about the effect of moving the roller table in relation to the overall balance of the assembly.

clockboy Distinguished Member

clockboy

Posted
  • Author
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Thanks Guys I have been thinking about this and until I come up with a better method I will remove the balance complete for safety as Agoldflam recommends 

Geo Distinguished Member

Geo

Posted
Posted

Excellent advice Agoldflam, I forgot about about the balance being poised with the roller table attached!

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