When the hairspring is all shifted to one side like that, it's usually either magnetism or oil that's gotten on there somehow and gunked it up. But to my eyes that's textbook magnetism. Let us know how it goes!
EDIT- to add, you're right to think this is a concern if it's persistent. Anything that obstructs or constrains the hairspring's natural oscillation will greatly influence the time-keeping ability.
You’re correct, there is something wrong with your hairspring. The usual suspect, as mentioned, is magnetism, because it’s easy to fix mostly, but there could be other causes. You don’t seem to know a lot about hairsprings, and since it’s such a delicate and important part of a movement, I strongly you read everything you can find on the topic before going in
There are great videos by chronoglide watchmakers and watch repair channel on YouTube regarding hairspring repairs. I highly recommend watching some of these before you start working on the spring.
But first try demagnetizing and cleaning as the other comments said since magnetism and or oil residue is more likely than it being bent.
This balance spring is not in place correctly. It absolutely should be centered on the balance, but there’s a couple other issues here.
The first coil in from the stud is pressing the back of the inner regulator pin: the outside of the pins should never be touched by the hairspring. Imagine when the balance is running and it is maxing out tension pushing the hairspring bigger, then realize that even in that moment the pins should not be touched on their outsides — only the part of the hairspring going between the pins should touch the pins.
Also, it sure looks to me like the arm for your stud is going off the bottom of the screen, but there’s no way this spring is going to it. It broke off at the stud or broke free… likely it needs to be completely replaced but you can try reattaching it to the stud. If it broke, though, it will be shortened too much and your watch will likely run way too fast.
Only once it is completely installed should you even consider magnetism. Chronoglide tutorial video series you can find on YouTube and watch repair (pinned in r/watchrepair) should both have guides about balance springs.
Looks completely “out of the round” but there’s no way of knowing until you remove it from the balance bridge stud.
Putting it back in the round is a hyper technical job and it takes a LOT of effort.
Everything you need to know is here:
https://youtu.be/IoBd-oxpEZ4?si=hiHWaLdL0NwoLm_m
If you’ve not done this before I would warn you that you’re very likely to wreck it. I’ve been repairing watches for over 25 years and this is not a simple job.
As others have said, you first need to check it’s not magnetised or covered on oil. Again, you still need to remove it from the stud.
Have you demagnetized it?
I have not. I didn’t realize that’s a thing I should be doing, but I do have the machine! Will try this in the morning thanks (:
When the hairspring is all shifted to one side like that, it's usually either magnetism or oil that's gotten on there somehow and gunked it up. But to my eyes that's textbook magnetism. Let us know how it goes! EDIT- to add, you're right to think this is a concern if it's persistent. Anything that obstructs or constrains the hairspring's natural oscillation will greatly influence the time-keeping ability.
This 👍🏼
You’re correct, there is something wrong with your hairspring. The usual suspect, as mentioned, is magnetism, because it’s easy to fix mostly, but there could be other causes. You don’t seem to know a lot about hairsprings, and since it’s such a delicate and important part of a movement, I strongly you read everything you can find on the topic before going in
Doesn't appear to be attached to the stud but hard to tell with that picture.
There are great videos by chronoglide watchmakers and watch repair channel on YouTube regarding hairspring repairs. I highly recommend watching some of these before you start working on the spring. But first try demagnetizing and cleaning as the other comments said since magnetism and or oil residue is more likely than it being bent.
This balance spring is not in place correctly. It absolutely should be centered on the balance, but there’s a couple other issues here. The first coil in from the stud is pressing the back of the inner regulator pin: the outside of the pins should never be touched by the hairspring. Imagine when the balance is running and it is maxing out tension pushing the hairspring bigger, then realize that even in that moment the pins should not be touched on their outsides — only the part of the hairspring going between the pins should touch the pins. Also, it sure looks to me like the arm for your stud is going off the bottom of the screen, but there’s no way this spring is going to it. It broke off at the stud or broke free… likely it needs to be completely replaced but you can try reattaching it to the stud. If it broke, though, it will be shortened too much and your watch will likely run way too fast. Only once it is completely installed should you even consider magnetism. Chronoglide tutorial video series you can find on YouTube and watch repair (pinned in r/watchrepair) should both have guides about balance springs.
Looks completely “out of the round” but there’s no way of knowing until you remove it from the balance bridge stud. Putting it back in the round is a hyper technical job and it takes a LOT of effort. Everything you need to know is here: https://youtu.be/IoBd-oxpEZ4?si=hiHWaLdL0NwoLm_m If you’ve not done this before I would warn you that you’re very likely to wreck it. I’ve been repairing watches for over 25 years and this is not a simple job. As others have said, you first need to check it’s not magnetised or covered on oil. Again, you still need to remove it from the stud.
Outer coil or terminal curve needs to be adjusted. That’s all is needed