How to open this vintage Seiko 5

Thread: How to open this vintage Seiko 5

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  1. #1
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    How to open this vintage Seiko 5

    Hey all,

    This vintage Seiko 5 belonged to my grandfather, and I wouldn't be surprised to find out that he bought it on a trip to Japan:



    The problem I'm having is that the crown has come unscrewed from the stem. I would like to open it and take the stem out, screw the crown and stem back together, replace the stem, and close it back up. Trouble is, I'm not sure how.

    Here's the back:



    I have a crystal lifter and know how to use it. The trouble seems to come from the metal ring around the crystal in that I can't remove it.

    Any suggestions or instructions on opening this watch would be appreciated. My grandfather would be proud that someone's still wearing and using it.

    Thank you,
    -William

    Sent from my myTouch_4G_Slide using Tapatalk 2

  2. #2
    Member twiceaday's Avatar
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    Re: How to open this vintage Seiko 5

    I wish I had some constructive advice for you, but I don't.

    That watch is a peach, though. Gramps had good taste.

  3. #3
    Zenith Forum Co-moderator
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    Re: How to open this vintage Seiko 5

    I have to say that if you are in any doubt, never mind whether you have the equipment or not, I would leave it to the specialist. All the more so since it is your grandfather's watch.

    Alternatively, try the Watchmaking forum. They may well be better on handling technical problems of this sort.

    Hartmut Richter

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  5. #4
    Member ltri's Avatar
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    Re: How to open this vintage Seiko 5

    Can't tell if the bezel is removable or not. If not then you can pop thy crystal out by using a hand pump and blowing in the stem tube. Like this 4 Watch Crystal Removing Pumps Dust Blower Hand Tools Watchmaker | eBay.
    Last edited by ltri; December 4th, 2013 at 03:06.
    I'm a watchbreaker not a watchmaker.

  6. #5
    Member Sparcster's Avatar
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    Re: How to open this vintage Seiko 5

    Hi There,

    I dont recall coming across a 6119-8500 in my Seiko Ventures!

    Yours dates to Feb 1983.

    I am unaware of the 6119 movement having a split stem, as such can only assume the dial lifts off to allow access to the stem (and its removal). As the crown unscrews, this may not be an issue either way!

    I found another thread showing the same case design: https://forums.watchuseek.com/f89/wtb...et-723195.html

    Looking at the pics in that thread, it would look like the bezel can be removed.



    Is there not a visible lip that a case knife could fit in?

    Good luck
    A designer knows he has achieved perfection not when there is nothing left to add, but when there is nothing left to take away...

    Antoine de Saint-Exupery

    Twitter: quickpicmarc

  7. #6
    Member 6omega's Avatar
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    Re: How to open this vintage Seiko 5

    Sorry, I don't have any specific advice. I would google and youtube this model number. Many hobbyists have recorded their disassemblies. Please practice on something other than your grandfather's watch - don't make rookie mistakes on nice pieces!

  8. #7
    Member Sparcster's Avatar
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    Re: How to open this vintage Seiko 5

    Taking a second look...

    You may want to search for 'Seiko Open Thru Glass 31'

    I assume the '31' may refer to a specific tool/method used for removing the crystal.
    A designer knows he has achieved perfection not when there is nothing left to add, but when there is nothing left to take away...

    Antoine de Saint-Exupery

    Twitter: quickpicmarc

  9. #8
    Member joeuk's Avatar
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    Re: How to open this vintage Seiko 5

    Yes that case back surely gives you some clues how to do it lol here is a link to explain Seiko & Citizen Forum: King Seiko question

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