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Post by terras14 on Feb 20, 2019 4:59:06 GMT -8
I went to my watch maker to replace my 6105 crown. So the watchmaker show me that he remove the old crown with stem and fitted the crown to the tube. He said as the rubber gasket has already harden, once the crown fitted to the tube, it takes a lot of effort to pull it out. Hence he ask me not to do it unless I have a better crown.
My question is what are my option in this case? I know replacing the gasket in the crown is not an easy task. Any one can do it currently?
Buying a NOS crown may alsonhave the same issue.
Please help. Thanks
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iwaddell
Timekeeper
Between the devil and the deep blue sea.
Posts: 758 
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Post by iwaddell on Feb 20, 2019 8:06:14 GMT -8
You could also look at doing the Trip lock crown conversion that was very popular mod on the 6105 a few years back. Not seen or heard of anyone doing it lately.
I had thought about doing it, but was very lucky to source a NOS crown from Jonathan (RIP) when he services and sorted mine.
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Deleted
Deleted Member
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Post by Deleted on Feb 20, 2019 8:35:55 GMT -8
I went to my watch maker to replace my 6105 crown. So the watchmaker show me that he remove the old crown with stem and fitted the crown to the tube. He said as the rubber gasket has already harden, once the crown fitted to the tube, it takes a lot of effort to pull it out. Hence he ask me not to do it unless I have a better crown. My question is what are my option in this case? I know replacing the gasket in the crown is not an easy task. Any one can do it currently? Buying a NOS crown may alsonhave the same issue. Please help. Thanks There are a couple of folks who replace the gaskets but they are usually busy and you could wait many months. Finding an NOS crown will be difficult and expensive. It may also have the same issue of a hardened gasket. Your best bet may be an aftermarket crown that has a fresh gasket; if you don't care about originality.
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Mr.Jones
Needs a Life!
Hamburg, Germany
Posts: 4,679
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Post by Mr.Jones on Feb 20, 2019 9:00:00 GMT -8
Duncan (thewatchbloke) in the UK and our Adrian-VTA in Australia do this replacement. |
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Deleted
Deleted Member
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Post by Deleted on Feb 20, 2019 11:19:17 GMT -8
Duncan (thewatchbloke) in the UK and our Adrian-VTA in Australia do this replacement. Also, Randall Benson has done this in the past. He is in the USA. Unfortunately there doesn't seem to have been any activity on his site(Seikoholics) since early 2018.
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cobrajet25
Needs a Life!
"Underweared curmudgeon!"
Posts: 3,357
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Post by cobrajet25 on Feb 21, 2019 3:07:06 GMT -8
I have purchased a couple of internally-gasketed NOS Seiko crowns with this problem. Several people suggested that I soak the crown in some kind of 'automatic transmission seal conditioner', like Trans-X, as these sorts of products have compounds in them which are supposed to soften hard, leaking rubber gaskets in transmissions and make them seal up again.
I tried it with no luck...
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Rod
WS Benefactor
Posts: 2,213
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Post by Rod on Feb 21, 2019 19:44:37 GMT -8
I have purchased a couple of internally-gasketed NOS Seiko crowns with this problem. Several people suggested that I soak the crown in some kind of 'automatic transmission seal conditioner', like Trans-X, as these sorts of products have compounds in them which are supposed to soften hard, leaking rubber gaskets in transmissions and make them seal up again.
I tried it with no luck...
Try good old rubber grease it acts as a preservative and lubricant, I've coated all my NOS crown seals with it and have never had a failure. I use it with all the seals on my watches instead of silicon grease. |
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cobrajet25
Needs a Life!
"Underweared curmudgeon!"
Posts: 3,357
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Post by cobrajet25 on Feb 21, 2019 21:04:34 GMT -8
I have purchased a couple of internally-gasketed NOS Seiko crowns with this problem. Several people suggested that I soak the crown in some kind of 'automatic transmission seal conditioner', like Trans-X, as these sorts of products have compounds in them which are supposed to soften hard, leaking rubber gaskets in transmissions and make them seal up again.
I tried it with no luck...
Try good old rubber grease it acts as a preservative and lubricant, I've coated all my NOS crown seals with it and have never had a failure. I use it with all the seals on my watches instead of silicon grease.
The problem being described here is with NOS crowns which have had their original rubber seals essentially turn to hard plastic over the years. Since these gaskets will not compress the crown cannot be fitted over a stem tube...rendering it useless. Will rubber grease soften rubber gaskets that have already hardened?
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Rod
WS Benefactor
Posts: 2,213
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Post by Rod on Feb 22, 2019 1:05:30 GMT -8
Try good old rubber grease it acts as a preservative and lubricant, I've coated all my NOS crown seals with it and have never had a failure. I use it with all the seals on my watches instead of silicon grease.
The problem being described here is with NOS crowns which have had their original rubber seals essentially turn to hard plastic over the years. Since these gaskets will not compress the crown cannot be fitted over a stem tube...rendering it useless. Will rubber grease soften rubber gaskets that have already hardened?
I have used rubber grease on old NOS crowns that were suspect and it softened the rubber, how long this took is unknown as I coat all NOS crowns as soon as they arrive and seal them in a ziplock bag until use. wristsushi.proboards.com/post/95101 |
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Post by terras14 on Feb 22, 2019 20:46:23 GMT -8
Duncan (thewatchbloke) in the UK and our Adrian-VTA in Australia do this replacement. Hi thanks. I will try to contact both. |
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