I expected to do an easy task...

[tafari]

great job Michael

[djolemag]

this happened with me today... now I know how it could happened, one of the cases at least. I spent half a day, I used straight tweezers... still looks ugly. Dear Mr. [mention]Yoda[/mention] any recommendations? I think i need to buy two banded 90degry tweezers and made one profile half round to reduce evenly diameter as my spring enlarged a bit in diameter. Or if I need to buy new for cortebert 624, How should I search it? eBay do not have if i just input cortebert 624. Sorry for troubling you

Hard to explain... It can be fixed but.... it is twisted somewhere at the beginning of 4th coil turn, counting from outside....

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[wwwEvgeny]

this happened with me today... now I know how it could happened, one of the cases at least. I spent half a day, I used straight tweezers... still looks ugly. Dear Mr. @Yoda any recommendations? I think i need to buy two banded 90degry tweezers and made one profile half round to reduce evenly diameter as my spring enlarged a bit in diameter. Or if I need to buy new for cortebert 624, How should I search it? eBay do not have if i just input cortebert 624. Sorry for troubling you

I use a set of Dumont tweezers, number 1, 2, 3, 4 and 5.
Also a soft cell foam pad, that way I can turn the hairspring upside down and press down coil by coil. I do have a tweezers with curved tips to make the turns round again, but it works well with the straight tweezers and a fine steel pin for creating the curves.
My personal experience is that the problem usually is 90 degrees earlier than where you see the bends.
If you grip a coil and bend in or out, then you can lower or raise the coil.
Needless to say that it's a matter of a lot of practice.

Sourcing hairsprings can be really hard, I don't know where to look right now.

There may be sellers who stock Cortebert and Hamilton parts, my best advice is to Google.

thank you !! it means I need to fix it whatever it takes , make it work ))) will kill another half of the day tomorrow... probably it will look as rubber chicken after a dog played with it, but I hope I will no need to buy a new one...

[djolemag]

Should be flat...

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[djolemag]

Should be flat...

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I almost assumed that from the look of it.

Yes, and 624 should be thin movement so I supposed it is flat

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[Fizzzz]

One more miraculous job from Master Yoda,
congrats M.!

[Emilio]

I wish I had the skills! I have a bent spring on a Unitas 285

[djolemag]

First skill needed is Patience

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[wwwEvgeny]

Today I leaned a few things, need practice more... do not use plastic tweezers for small details, they can fly fare away , Cortebert 620 622 624 not all parts interchangeable, regulators are different angle... still have hope to save first hairspring, blue big diameter hair spring running like crazy probably the balance 620 lighter then 622... Monday hope to fix small spring at least running speed ok. [mention]Yoda[/mention] sorry I write my problem in your topic, thank you for suggestion on tools and technical advice