Jump to content
  • 0

How to reattach mainspring to barrel arbor


Question

I am completely new to watch repair, but after a few days of research, I decided I wanted to repair a broken pocket watch that I had sitting around. After some careful disassembly I opened up the mainspring and soon noticed that the spring was detached from the barrel arbor. It seems that the hook attaching the spring to the barrel arbor has snapped off. I am wondering how it is recommended that I reattach the mainspring.

Thanks,

NovemberNeptune

IMG_0719.jpg

Link to post
Share on other sites

4 answers to this question

Recommended Posts

  • 0

Attach it by carefully bending the spring end to the barrel arbor. I say careful because it might snap and break off. I always used a pair of round nose pliers. 

  • Like 1
Link to post
Share on other sites
  • 0
8 hours ago, NovemberNeptune said:

It seems that the hook attaching the spring to the barrel arbor has snapped off.

Could you remove the barrel arbor and take a photo of the hook?

Link to post
Share on other sites
  • 0

Bend the mainspring so it would wrap around the arbour tight,  arbour catch shouldn't get out of spring's eye if you turn the arbour in either direction clockwise or anticlock. 

 

Link to post
Share on other sites
  • 0

Your hook is fine, and I think it will catch and wind with the slightest bend right at the end. Once the second turn wraps around it holds it on the hook, so no need for extreme bending. It probably came unhooked when letting the power down, if it's done too fast sometimes it will unhook and even wrap backwards almost.

  • Like 1
Link to post
Share on other sites


×
×
  • Create New...