trilo
WS Benefactor
Posts: 2,032
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Post by trilo on Apr 3, 2024 11:03:49 GMT -8
...better use an angle grinder.  |
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inboost
WS Benefactor
Constantly Rodicoing
Posts: 4,291
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Post by inboost on Apr 3, 2024 13:36:47 GMT -8
I sure hope that wasn't on someone's arm when they did that  |
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Post by petermone on Apr 3, 2024 13:40:11 GMT -8
Common knowledge if you want to keep the movement  Best, Peter
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Post by rob3rto on Apr 3, 2024 14:44:24 GMT -8
Why not epoxy a nut on the caseback and use a long spanner for leverage? Then you can remove nut with no damage to caseback or movement.
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trilo
WS Benefactor
Posts: 2,032
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Post by trilo on Apr 4, 2024 1:58:27 GMT -8
Common knowledge if you want to keep the movement Best, Peter
Huh? |
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trilo
WS Benefactor
Posts: 2,032
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Post by trilo on Apr 4, 2024 1:59:39 GMT -8
I sure hope that wasn't on someone's arm when they did that I sure hope so... |
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inboost
WS Benefactor
Constantly Rodicoing
Posts: 4,291
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Post by inboost on Apr 4, 2024 4:52:58 GMT -8
I believe what petermone is showing us is that the threads on the case-back had collapsed on that watch so there was absolutely no hope of unscrewing it. The cut is a relief of the material to allow you to effectively peel the case back out of the case band. Both parts are going to be lost in the process as the thread damage is likely to be reflected in the case band too. So as mentioned, if you've got a movement and dial worth saving in a case that is hopelessly frozen shut this would be one way to recover the internals. |
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trilo
WS Benefactor
Posts: 2,032
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Post by trilo on Apr 4, 2024 6:14:23 GMT -8
I believe what petermone is showing us is that the threads on the case-back had collapsed on that watch so there was absolutely no hope of unscrewing it. The cut is a relief of the material to allow you to effectively peel the case back out of the case band. Both parts are going to be lost in the process as the thread damage is likely to be reflected in the case band too. So as mentioned, if you've got a movement and dial worth saving in a case that is hopelessly frozen shut this would be one way to recover the internals. Ah, I see Well... I don't know what to say really  |
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victor
WS Benefactor
Posts: 1,009
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Post by victor on Apr 4, 2024 6:26:02 GMT -8
But..., is it still water resist when it's screwed back down? 
And seriously, that's a problem and solution you don't see every day. Thanks for the pics and the explanations.
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cd_god
Is a Permanent Fixture
Finna set up a HOOD next door to your richie phuk suburban mansion
Posts: 12,274 
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Post by cd_god on Apr 4, 2024 19:12:05 GMT -8
Works on exhaust systems as well when you are trying to relieve the inner pipe (AKA caseback threads) from the outer pipe (AKA case)
I knew I was one of them scientific engineers and not just redneck smart from hand me down years of experience don't need no fancy looky book school knowledge 
I am also a poet and don't even know it 
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