Jump to content

Mystery tool--figured it out!

LittleWatchShop
 Share

Recommended Posts

Marc Distinguished Member

Marc

Posted
Posted

P1080567.thumb.JPG.b8a88ab0c8c6fe13a041a6717cc3a97c.JPG

Mine says "Hi".

@Nucejoe I wouldn't say useless, more "little used". It doesn't see much action for sure, but on the odd occasion when a case design calls for a curved spring bar and you only have straight ones this thing is the business. Try putting a curve in a spring bar without one of these and all you end up with is broken spring bars.

Link to comment
Share on other sites
nickelsilver Distinguished Member

nickelsilver

Posted
Posted
9 hours ago, Marc said:

@Nucejoe I wouldn't say useless, more "little used". It doesn't see much action for sure, but on the odd occasion when a case design calls for a curved spring bar and you only have straight ones this thing is the business. Try putting a curve in a spring bar without one of these and all you end up with is broken spring bars.

The old school trick is to press the spring bar between two appropriately sized spoons. It does work!

  • Like 2
Link to comment
Share on other sites
Marc Distinguished Member

Marc

Posted
Posted
10 hours ago, HectorLooi said:

Crown tube extractor.

Bingo, it's an Etic 350-110 and it is for both pushing out and reinstalling case tubes. . I haven't been able to find anything out about it using the usual inter-web search facilities.

Here's another view, in removal mode.....

20210126_092644.thumb.jpg.45b8209e6386e7def14387f2bd0378d8.jpg

and in installation mode.

20210126_092747.thumb.jpg.dae8b442cb3d5d729d1eea3349c1becf.jpg

I'm assuming that it isn't complete as I suspect that there should be a variety of different sized pins. The one that I have works ok both for removing and installing tubes of around 2.5mm but if the hole through the tube is bigger than 2mm, or the hole in the case smaller than 2mm, then tube removal with this pin would be impossible. Also I suspect that for reinstallation the ideal would be for the pin to actually fit inside the tube for stability. I have been meaning to make up a few additional pins to accomodate a range of sizes of tube but just haven't got around to it. I suspect that they will end up being made on an as and when needed basis.

 

  • Like 1
Link to comment
Share on other sites
Marc Distinguished Member

Marc

Posted
Posted
29 minutes ago, HectorLooi said:

I'm not so sure if this is the correct way to use it. It looks like it could possibly deform more delicate cases like those of dress watches.

I can't see any other way to use it and its design definitely points to this mode of operation.

The pin has a flat registration edge to it.

20210126_122922.jpg.6be53b0dd0144d8758f4753351c31762.jpg

which shows where it's supposed to be and how it fits on the frame.

20210126_122811.jpg.39ffc9bb1a9393a11e2ad708b16bff68.jpg

in extraction mode...

20210126_122840.jpg.c0e2e0449b5914c760d86c91f6364122.jpg

and installation mode.

And the fixed anvils are both curved to fit the inside of the case.

20210126_122700.jpg.789b05829de8456f5d5e3b76faf992b8.jpg

Installation mode..

20210126_122738.jpg.e063d5c7042921226180dec9abe6e70d.jpg

and extraction mode.

I don't see any potential issues with the design in installation mode as the case is supported on the same side that the installation effort is applied.

I can see that in extraction mode by having the anvil supporting the case on the opposite side to the case tube the case is subjected to a certain amount of tension, and with a delicate case this could cause distortion, but the convex shape of the anvil and its location in respect to the pin clearly indicates to me that this is its intended MO. I guess it would depend on just how firmly the tube fits in the case as to whether or not it would cause any problems.

I would agree though that a better design would have been to replicate the arrangement used in installation mode such that the anvil and the pin were on the same side of the case, with a concave face to the anvil so that it fit the outside curve of the case to support it as the tube is presed out from the inside.

All that being said I have used it on a fair number of cases now with no issues.

Link to comment
Share on other sites
Marc Distinguished Member

Marc

Posted
Posted
51 minutes ago, HectorLooi said:

Is it possible to configure your tool to compress from the inside of the case?

Actually all it would take is something to slip over the installation anvil to make it a concave support and it could then be used for both installation and removal.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • RichardHarris123
      Down the rabbit hole!

      By RichardHarris123 · Posted

      Well done, let us know how you get on with the citizen. 
    • tomh207
      Without Our Forum

      By tomh207 · Posted

      @Neverenoughwatches Rich, I can only agree with you wholeheartedly. I spend a lot of time here learning all sorts and trying to make any little contribution to help others I can. Nothing can last forever and I wish I could do more to contribute to the forum financially and any other support I could.   Tom
    • oldhippy
      Without Our Forum

      By oldhippy · Posted

      This forum is a big part of my life. When I retired from horology many years ago due to poor health I missed what I had trained for. On here I can still do my bit in helping and advising others and have a little fun as well.  
    • RichardHarris123
      Without Our Forum

      By RichardHarris123 · Posted

      First thing this morning, make coffee, second, check the forum.  I would really miss the forum, not on any social media, not interested in telling the world what I had for breakfast!!! I do consider most of the regulars friends and would wonder what had happened if they stopped posting. 
    • fnick
      Down the rabbit hole!

      By fnick · Posted

      Hi all Thought I'd show my small and trying to keep under control watch collection! Apart from the Enicar all were under £12! At least if I destroy them in the process then I won't be too worse off. A few pics to start off with First of all my first attempt. A Thuya pocket watch. It was only running face down and would stop when vertical. So now it still works face down and only slows down when vertical so at least an improvement! 😄  I only have a generic watch oil at the mo so that won't help but I'm hoping to get some more appropriate oils in a couple of months for my birthday. I did have to get a crystal for it since it didn't come with one. It didn't look as though it would friction fit (and I don't have a crystal press in any case) so I glued it to the case with PVA. So far so good. Next up above are a sekonda and citizen automatic. Both non runners. Both with broken balance wheels amongst other things. I'm hopeful the citizen will start when I get the new one I ordered but the sekonda is being kept for spares and trial of new techniques. And finally the Enicar and the timemaster. Both running when I got them. I wanted to get running watches so that at least I stood a fighting chance of still having a running watch after the service! It was all going well on the Enicar until I dropped the balance wheel during reassembly...😔. Unfortunately they are quite expensive to get so for now I'll won't do anything with it but I would like to fix it at one point. The timemaster is still running (yeah!) but I managed to break a dial foot during the deassembly. First repair attempt failed so now I am looking at soldering it back on... So there we go. My initial foray into this great hobby. Thanks for sticking with this tale so far.  I'm hoping that once the balance wheel arrives for the citizen I will be able to say I bought a non runner and fixed it! So fingers crossed. Thanks for looking, Nick
×
×
  • Create New...