Jump to content

replacing crown gasket (hidden type)

east3rn
 Share

Recommended Posts

east3rn WRT Addict

east3rn

Posted
Posted

Hello! 

I am working on a vintage watch and the crown of the watch is fitted with a hidden type gasket which is 

in terrible condition and needs to be replaced.

However, I found it difficult to pull the gasket out with my tweezers or tooth pick. 

Could anyone recommend an easier way to remove this kind of gasket from the crown??

I forgot to take a photo of the crown so I attached a similar example I found on the web.

 

MESS-2.jpg

jdm Distinguished Member

jdm

Posted
Posted

You need to work it out with patience, it have degrade to sticky tar. Use a small nail with a bent, sharpened tip. Some heat with a lighter may help. When looking for a replacement on Cousins look under Swiss crowns, not gaskets. 

  • Like 1
  • Thanks 1
Nucejoe Distinguished Member

Nucejoe

Posted
Posted

Heat a sharpened tip to glow, choose a point on the gasket, burn all the way down to the metal to gain access underneath the gasket, if if didn,t come out peacefully, burn two points or all the gasket. Do not heat the crown. 

I then soak in chemicals to brush clean the residue.

Best wishes

 

 

jdm Distinguished Member

jdm

Posted
Posted

Maybe I misunderstood that the gasket was at least partly accessible. If it is not, I think you should first remove the washer covering it, try unscrewing or pulling it gently. If it does not come out whole you may get more aggressive but be cautious in not damaging thread. Final option is fitting a new waterproof crown, generic are not terribly expensive. 

  • Thanks 1
Nucejoe Distinguished Member

Nucejoe

Posted
Posted
2 hours ago, jdm said:

Maybe I misunderstood that the gasket was at least partly accessible. If it is not, I think you should first remove the washer covering it, try unscrewing or pulling it gently. If it does not come out whole you may get more aggressive but be cautious in not damaging thread. Final option is fitting a new waterproof crown, generic are not terribly expensive. 

I agree, Original crowns normaly had a metal washer convering the gasket. The image posted is one off the net, supposedly like what he is working on.  

Obviously my approach would work either if a metal washer.If so and stubborn, the washer can be pressed in, made loose to remove. 

How about a pic of the actual piece @east3rn

 

 Share
Go to topic listing

  • Similar Content

  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • Nucejoe
      Greetings from Whidbey Island.

      By Nucejoe · Posted

      Hello and welcome to the WRT forum.
    • JohnR725
      A lathe with indexing that won't break the bank?

      By JohnR725 · Posted

      interesting video nice to see the machine what it can do now I wonder what it costs and I'm sure it's not in my budget. Plus the video brought up questions but the website below answers the questions? What was bothering me was the size of his machine 4 mm because I thought it was bigger than that? But then it occurred to me that maybe they had variations it looks like four, seven and 10. With the seven and 10 being the best because way more tool positions in way more rotating tools. Although I bet you all the rotating tools are probably separate cost https://www.tornos.com/en/content/swissnano   Then as we been talking about Sherline. Just so that everyone's aware of this they have another division their industrial division where you can buy bits and pieces. I have a link below that shows that just in case you don't want to have the entire machine you just need bits and pieces. https://www.sherline.com/product-category/industrial-products-division/   Let's see what we can do with the concept I explained up above and bits and pieces. For one thing you can make a really tiny gear very tiny like perhaps you're going to make a watch. Then another version the center part is not separate it is all machined from one piece. Then fills gear cutting machines have gone through multiple of evolutions. A lot of it based on what he wanted to make like he was going to make a watch unfortunately eyesight issues have prevented that. Another reason why you should start projects like this much sooner when your eyesight is really good or perhaps start on watches first and then move the clocks then local we have from the industrial division? Looks like two separate motors and heads. Then it's hard to see but this entire thing is built on top of a much larger milling machine as a larger milling machine gave a very solid platform to build everything.   Then like everything else that had multiple generations are versions the indexing went through of course variations like above is one version and the one below was the last version. Now the version below I mentioned that previously and somewhere in the beginning to discussion and somebody else had one in their picture. As it is a really nice precision indexing. Then I wasn't sure if I had a the watch photos here is his unfinished watch. No he wasn't going to make a simple watch like none of his clocks were simply either what would be the challenge and that.    
    • Titanium
      Lab Coats

      By Titanium · Posted

      Use a Portwest Howie lab coat. They are the biological type so they have tapped cuffs so you don't end up getting the loose cuffs of normal lab coats catching everything. 
    • Titanium
      Chinese tools debate

      By Titanium · Posted

      Some of the Chinese tools ae great and can be purchased at a fraction of the price of Swiss ones, some are complete garbage and some I'm convinced are coming out the same factory as the branded ones.
    • caseback
      Calendar work certina 25-651

      By caseback · Posted

      I found this string about this problem. I've not gone through it all, but I believe it also mentions making a spring. If not in this string, the info is online.
×
×
  • Create New...