First step:
I prefer to restore the spring to its original shape before reshaping it.
In the video, I “removed” the overcoil and straightened the twists in the spring.
With old springs, there’s always a risk of breakage, so it’s important to be cautious and bend it slowly but steadily.
The video is speeded up.
Manupilating the hairspring back to its original shape
Reshaping:
With Breguet hairspring there are some “rules” that has to be followed.
The slope from flat to top of the coil should be approximately 30° and the overcoil should start 270° from the stud.
I am using balsa wood as support when bending the spring, but it can also be done directly on your bench matt.
First step is to bend the 30° slope, then turn the spring over, move your tweezers little bit against the stud and bend it back so the overcoil is parallell with rest of the spring
Bending the overcoil
Shaping the overcoil:
The curve must be shaped evenly to ensure that the spring maintains its position when adjusting the regulator.
Shaping the curve
And the proof is in the pudding
Final test
That’s all for this time.
Please feel free to add your comments below and share your thoughts. Your feedback is always appreciated and helps us improve.
Stay tuned for more updates and insights in our next post. Until then, happy watchmaking!
Incredible job! Very skilled hands.
Believe it or not, for me its meditation 🙂
Greatly appreciated this.
I have my Omega hairspring to do and this will be a great help.
Thank you.
If you run into problems with your Omega, just drop me a message and we see if I can help you