Stem Gasket Replacement (Swiss Army - ETA G10.211)

[AcmeSix]

Looking for some guidance on the best way to remove the spacer / washer that is covering the stem gasket.  

[HectorLooi]

This is an extremely difficult procedure. Unless it's an expensive, signed crown, I wouldn't do it.

You'll need a microscope, old oilers and acetone. The crown has to soak in acetone until the gasket softens into a black gooey mess, then use the oilers to scoop out the goo. Repeat several times until it looks ckean. As the oiler is carbon steel, the gasket seat always gets scratched up and I wonder if it can give a proper seal after that.

I've tried cutting off the washer, intending to replace it with a new one, but the lip that holds the washer in always breaks when burnishing to flare it open.

I wonder if other members have had better luck with this?

[AcmeSix]

Ouch,  It looks like a tricky operation for sure.  I appreciate your response.

[AcmeSix]

Does anyone know how this procedure was accomplished?

It looks like he made it concave?  Maybe using a staking set.  It looks like he then reversed it and re-staked it?  Thoughts?

[mikepilk]

As @HectorLooi says, this is a really fiddly job. 

There's an ingenious method of doing it explained here : https://adventuresinamateurwatchfettling.com/2015/10/12/crown-revival-seiko-6105-and-62mas-crown-gasket-replacement/

[AcmeSix]

That is exactly what I am looking for.  While I most likely will not perform it on this crown I don't like not knowing how to address it in the future.

[AcmeSix]

Thank you both for your help on this.