How To Regulate A Tudor 2671 Movement That Is Running Too Fast

[suparobg]

Using the picture can anyone show me how to regulate the time on the Tudor 2671 movement that is running 5 seconds fast every minute?

 

Thank you.

 

[johnny]

Hi

 

I am no pro but, as far as I know, this movement should have a thorough cleaning before you try to regulate - it may not need much regulation after cleaning.  old oil + gum can add too much drag and reduce the amount of torque driven to the balance wheel.

My understanding is: when the balance wheel does to rotate at full amplitude - the watch goes very fast.

 

good luck

 

 

[suparobg]

Thanks. just want to know how to speed it up and slow it down.both of those

[Geo]

That's a couple of hours a day and is way beyond the fine adjustment range.

If you are not prepared to have the watch properly serviced, at least have it demagnetised and the balance spring cleaned to make sure that it is not contaminated with oil. Do this and you may find that it runs reasonably OK without adjustment.

Edited April 13, 2014 by Geo

[Mark]

+1 what Geo said.

 

Thats not fast - it's a gallop :)

 

As for regulating: To adjust any watch you have to either:

• Effectively shorten or lengthen the hairspring. On this movement the way to do this is to move the index adjusting screw on top of the balance cock, which gives a few secs/day adjustment. Or move the index which can give a few mins/day adjustment
• Or adjust the weight of the balance wheel. This is done with timing screws usually (for example, Omega Co-Axial or many Rolex movements). But sometimes with adjustable weights on the balance. Not for the feint hearted as you can easily knock the balance out of poise with incorrect adjustment.

On your movement the adjustment would not be able to compensate for the amount of gain you are having so other areas will need to be investigated. Magnetism, poor lubrication or Hairspring contamination being the most likely causes.

 

Best Remedy = Full Service

[suparobg]

i will have it demagnetized 

Thanks again

Edited April 15, 2014 by suparobg

[suparobg]

+1 what Geo said.

 

Thats not fast - it's a gallop :)

 

As for regulating: To adjust any watch you have to either:

• Effectively shorten or lengthen the hairspring. On this movement the way to do this is to move the index adjusting screw on top of the balance cock, which gives a few secs/day adjustment. Or move the index which can give a few mins/day adjustment
• Or adjust the weight of the balance wheel. This is done with timing screws usually (for example, Omega Co-Axial or many Rolex movements). But sometimes with adjustable weights on the balance. Not for the feint hearted as you can easily knock the balance out of poise with incorrect adjustment.

On your movement the adjustment would not be able to compensate for the amount of gain you are having so other areas will need to be investigated. Magnetism, poor lubrication or Hairspring contamination being the most likely causes.

 

Best Remedy = Full Service

 

 

 

could you circle the parts you are talking about yo move the index as well  as where to move the adjusting screw on top of the balance cock.

[No8yogi]

I wouldn't try this unless you have tried it on a cheaper watch as practise! Hairspring scan be very tricky and easy too muck up with a capital F!

[Mark]

FYI :)

 

With the beat setter and the regulating arm it is important to move the arms not turn the studs in the arms. Turning these studs will distort the hairspring and a whole new set of problems will present themselves. This operation should not be done without a timing machine and an extreme amount of care.

 

[matabog]

Hello!

I have a question and this seems to be the closest topic.

 

The hairspring passes between the regulating pins with very little space between them and it. Why can't we close the pins all the way (meaning after we set the correct position of the regulator).

 

Thank you!

Bogdan