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Bent hairspring


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All right then.I baught some watches for practicing and developing my skills.The watch that I opened up is a russian "Raketa" with 2609.i movement and after some examination I have find out that the hairspring looks a litle unusual to other hairsprings.I unmounted the hairspring from the balace cock and voila it is bent.

I don`t know how severe is the bending but the pined pictures will tell.Any advice or tip is appreciated for startig to fix this bending.

Thanks in advance.

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This will depend on your skill. Working on h/springs takes a lot of practice. It is very difficult advising when its just a photo and you can’t see the thing at different angles. If it were me. I would start around the red arrow. You first need to get it on the correct side of the B/staff, and then proceed to shape it into the curl of the rest of the H/S. Don’t forget I cannot judge if it is bent high or low once it is the correct side of the staff.     

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That is badly damaged. Good for practice, but I'm not sure with my skills if I'd ever be able to get a satisfactory result from that. Metals "work harden" when you bend them, so it affects the characteristics of the spring, even if you manage to get the correct profile. It will be easier if you can get another god hairspring of the same type to compare to.

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  • 3 weeks later...

Hi,

Sorry for the long delay of the results, but I`m back. So far so good I made some effort to sort the bending out.It is not an easy work to do but I liked it. The hairspring is far from being ready to be remounted, it still has some distortions that need repairing.Any advice, opinion is appreciated.

Thanks in advance.

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52 minutes ago, Andraska said:

This is a super video featuring a russian Raketa watch. Probably one day I master this technic. Thank you very much

Not sure how he even did it. Tried that but only end up even worse. Looked pretty dirty before so i reckon he maybe just cleaned it when he did that. It was a bad example and just put it up as a not to do and fun video. 

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Hi,

Back again. I come to a bottleneck in terms that I don`t know how to make the end curve. I made an imaginative sketch drawing on the picture taken of the actual balance bridge, "X" marks the maximum regulation point and thats where the end curve ends I think....:unsure:

Any advice, opinion is appreciated.

Thanks in advance.

Balance bridge end curve.jpg

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  • 2 weeks later...

Hi,

This is the result of the work I did.I still have a lot of work to do the hairspring is twisted, not concentric maybe the watch will remain as a practice time peace.How can i upload a video?

 

IMG_20180624_175245.jpg

Edited by Andraska
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55 minutes ago, Andraska said:

How can i upload a video?

Just like any other file from the "choose files" link below, or upload on a video website and post the the link.

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  • 3 weeks later...


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    • your balance wheel looks interesting in the watch and because it's at an angle it's changing things a little bit. in other words they hairspring is not centered between the regulator pin in the boot and I also noticed your terminal curve is lacking apparently by design? Because if you look in the second image you'll notice yes there's a terminal curve but not as aggressive a one as you normally see on watches at least most watches.   then in all of your images it looks like the boot isn't quite back where it's supposed to be? out of curiosity how did you remove your balance complete and clear the regulator pin? then just in case you weren't aware it rotates out of the way so you can remove the balance complete without bending the pin. Then it's rotated back exactly 90° and yours looks like it's off by just a little bit in the original image and I'm assuming that you just been the pin out of the way? it's always interesting in horology is the variations in the things. Like the image I have above does have a terminal curve but not the most aggressive and yours is even less but that is the way the watch was made. Then the spacing between the regulator pin in the boot should be relatively small basically if you had two pieces of the thickness of your hairspring that's how much space should be there like in this image. But oftentimes watch manufacturers do not necessarily follow the rules  
    • Yep i can see where you're going with that one Rich.  Sooo now that I've frightened the OP into submission 😁. Chief i do apologise for some reason unbeknown to myself I'm in a happy silly mood. So seriously to identify the movement lets have a look at the dial side, learning this part is straightforward, just need a little logic and something called the # BESTFIT BOOKS # . Or the other non American equivalents. 
    • I can definitely see elephant and aardvark and possibly some sort of bird with a large beak 🤣 anyway I'll have a go of getting it flipped over tonight and send some pics
    • A Schild movements often have left handed crown screws. A pic of the keyless works would help identify it, and the size of the movement. Looks like someone has had a, not very subtle, attempt to decrease play in the centre wheel. And the hairspring looks like it needs some work. From the scratches on the bridges, it looks like it was last serviced by a drunken baboon, but it's a good movement to practice on. Good luck 
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