Mainspring ETA 7750

[lafwatch]

I just cleaned a 7750 going to replace mainspring with new I am using moebius 8217 on barrel walls can I use 8141 on mainspring or something else.

[Michael]

If you are talking about putting oil on the coils of the spring, personally I think you are fine not putting any oil at all. Greasing the barrel walls should be enough, put the new spring in, arbour in, and lid on. I am not sure what the ETA instructions guide says, but the difference in end result should be negligible

 

 

[jdm]

1 hour ago, Michael said:

Greasing the barrel walls should be enough, put the new spring in, arbour in, and lid on.

HP-1300 on the arbor, where barrel and lid turn is actually a good idea.