Who can install a crystal on my 6138-7000? - Seiko & Citizen Watch Forum Japanese Watch Reviews, Discussion & Trading
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Old 04-07-2015, 10:49 AM   #1 (permalink)
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Default Who can install a crystal on my 6138-7000?

I have a '73 Seiko 6138-7000 that I inherited from my grandfather in non working condition about 20 years ago.
I sent it off at the time to Coserv,who repaired and cleaned it mechanically, and cleaned up the outside, but the crystal has some digs in it, even after a polishing by them. The crystal was unavailable, so they did the best they could.

I finally found an NOS crystal for it, but as I experienced before, nobody around here wants to mess with an old watch, esp. if it doesn't say Rolex on it.

So, is Coserv still around? Would they use a crystal I sent them, if I sent it back in for a tuneup?

Thanks,

Sean
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Old 04-07-2015, 11:16 AM   #2 (permalink)
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Well hello and welcome to the forum...great to have you with us....Sean...if you are mechanically inclined..you can do this ....we can walk you thru it...if dont feel comfortable doing it yourself....i am sure we can find someone close to you to help...where are you located?...God Bless John...if you need any help...pm me.
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Old 04-07-2015, 11:22 AM   #3 (permalink)
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Originally Posted by jringo8769 View Post
Well hello and welcome to the forum...great to have you with us....Sean...if you are mechanically inclined..you can do this ....we can walk you thru it...if dont feel comfortable doing it yourself....i am sure we can find someone close to you to help...where are you located?...God Bless John...if you need any help...pm me.
Hi John,

Thanks! I was on another forum several years ago, which is how I learned about Coserv in the first place, after every jeweler in town looked at me like I was crazy.

I am mechanically inclined, and I have some small tools, as well. I've had the outer slide rule and the inner one off for cleaning under the cursor previously. Both popped up nicely with a nudge from a pocket knife.

Willing to give it a go.

Thanks,

Sean
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Old 04-07-2015, 11:49 AM   #4 (permalink)
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Best advice for you is to find a good watchmaker, you are highly likely to damage the watch if this will be your first time working on a watch.
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Old 04-07-2015, 12:07 PM   #5 (permalink)
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hey if you are careful and use some common sense...you can do any repairs yourself..taking off a bezel is quite easy...getting it back on is a little tricky but it can be done ....i would not use a pocket knife as that will scratch the case...you can protect the case with some painters tape...and i have found that a nylon tool will work well and will not damage anything...if you have a local shop...they can easily change it while you wait...
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Old 04-07-2015, 12:14 PM   #6 (permalink)
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Originally Posted by jringo8769 View Post
hey if you are careful and use some common sense...you can do any repairs yourself..taking off a bezel is quite easy...getting it back on is a little tricky but it can be done ....i would not use a pocket knife as that will scratch the case...you can protect the case with some painters tape...and i have found that a nylon tool will work well and will not damage anything...if you have a local shop...they can easily change it while you wait...
Cool. Do I just need to take off the inner slide rule ring to get to the crystal?

I appreciate the caution. I make it seem like I'm more flippant about it than I really am.

A watchmaker or repair shop is good advice, but I have scoured the shops around here, and nobody wants to work on a watch that they can't just replace if they screw up. The finer jewelers considered it "beneath" them, and the ones who sell Seiko wouldn't touch it.

As I said, I feel confident in my ability to do it. I work on guitars and amps, and used to build models. I'm used to working on delicate things.
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Old 04-07-2015, 02:04 PM   #7 (permalink)
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hey with the slide rule model...i told you incorrectly...the bezel should turn...which means it does not retain the crystal...it will have a crystal retaining ring...you stated you have removed the slide rule ring without damage?...
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"Only two defining forces have ever offered to die for you:
1. Jesus Christ

2. All the Soldiers around the World who fought for the lives and freedoms we have today

One hung on the cross and died for your soul

Our Soldiers bled and died for our freedom and we owe them everything...please never forget that...

The Republic will cease to exist when the government takes away from those who are willing to work to give to those who are not.
Unknown....

"This is what the Lord says: 'Stand at the crossroads and look; Ask for the ancient paths, ask where the good way is, and walk in it, and you will find rest for your souls.' " (Jer. 6:16)

Last edited by jringo8769; 04-07-2015 at 02:13 PM.
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Old 04-07-2015, 02:23 PM   #8 (permalink)
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I might be mistaken, but I think once you remove the sliding bezel, the inner stationary bezel should be popped off like in the UFO and then you can push out the crystal.
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Old 04-07-2015, 02:30 PM   #9 (permalink)
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well that is what i thought at first too...but from what i read...it is like a diver...i can not find good info about this one..it looks like the clear bezel comes off and then it is a regular bezel...you remove that and there is a retaining ring...Doom have you ever seen any tech sheet for this one...i will try and find one..can anyone please help find a disassembly manual or tech sheet...or if anyone has had this one apart...any help will so be appreciated ...God Bless John...just want to make sure i am giving out the correct info
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"Only two defining forces have ever offered to die for you:
1. Jesus Christ

2. All the Soldiers around the World who fought for the lives and freedoms we have today

One hung on the cross and died for your soul

Our Soldiers bled and died for our freedom and we owe them everything...please never forget that...

The Republic will cease to exist when the government takes away from those who are willing to work to give to those who are not.
Unknown....

"This is what the Lord says: 'Stand at the crossroads and look; Ask for the ancient paths, ask where the good way is, and walk in it, and you will find rest for your souls.' " (Jer. 6:16)

Last edited by jringo8769; 04-07-2015 at 02:33 PM.
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Old 04-07-2015, 03:59 PM   #10 (permalink)
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Howzit John and All...pics always help . Sean . I believe after 5 posts you can add pics ...
some place on this forum [homepage ?] there are instructions for posting pics
As John advised ...take every precaution not to scratch your watches . Doesn't look good and it seems that's all you'll see when you look at your watch , and it gives you more work to remove any scratches.....which is another thing altogether . As you can see , John is looking for tech sheets that will give you an exploded view pf the parts involved to get to the crystal . Good Luck and Welcome .
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Old 04-07-2015, 04:34 PM   #11 (permalink)
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Louis i can not find a tech sheet on this model....it sure would help...maybe someone who had worked on one will chime in..i will keep looking too
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The Republic will cease to exist when the government takes away from those who are willing to work to give to those who are not.
Unknown....

"This is what the Lord says: 'Stand at the crossroads and look; Ask for the ancient paths, ask where the good way is, and walk in it, and you will find rest for your souls.' " (Jer. 6:16)
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Old 04-07-2015, 05:31 PM   #12 (permalink)
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Hi John, I haven't seen a tech sheet for this one. It's pretty hard to find the watch in the first place.
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Old 04-07-2015, 05:33 PM   #13 (permalink)
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The information is most likely in the Seiko Tech manual. I'll have a look see after work this evening.
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Old 04-07-2015, 05:45 PM   #14 (permalink)
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thank you Tom...really appreciate it...i can not find anything online either...
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The Republic will cease to exist when the government takes away from those who are willing to work to give to those who are not.
Unknown....

"This is what the Lord says: 'Stand at the crossroads and look; Ask for the ancient paths, ask where the good way is, and walk in it, and you will find rest for your souls.' " (Jer. 6:16)
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Old 04-07-2015, 05:48 PM   #15 (permalink)
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Originally Posted by jringo8769 View Post
Louis i can not find a tech sheet on this model....it sure would help...maybe someone who had worked on one will chime in..i will keep looking too
This help?

http://service.seiko.com.au/i/seiko/...ides/6138A.pdf
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Old 04-07-2015, 05:53 PM   #16 (permalink)
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well that is great for the movement...appreciate it..we need to find the sheet for the case...it will show how it comes apart...these can be a little tricky with that slide rule and would hate to see it damaged ....someone will be able to find that case tech sheet...
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2. All the Soldiers around the World who fought for the lives and freedoms we have today

One hung on the cross and died for your soul

Our Soldiers bled and died for our freedom and we owe them everything...please never forget that...

The Republic will cease to exist when the government takes away from those who are willing to work to give to those who are not.
Unknown....

"This is what the Lord says: 'Stand at the crossroads and look; Ask for the ancient paths, ask where the good way is, and walk in it, and you will find rest for your souls.' " (Jer. 6:16)
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Old 04-07-2015, 05:58 PM   #17 (permalink)
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I have a seiko casing guide pdf. I'll have a look.
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Old 04-07-2015, 06:03 PM   #18 (permalink)
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thank you..that will really help...
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One hung on the cross and died for your soul

Our Soldiers bled and died for our freedom and we owe them everything...please never forget that...

The Republic will cease to exist when the government takes away from those who are willing to work to give to those who are not.
Unknown....

"This is what the Lord says: 'Stand at the crossroads and look; Ask for the ancient paths, ask where the good way is, and walk in it, and you will find rest for your souls.' " (Jer. 6:16)
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Old 04-07-2015, 07:47 PM   #19 (permalink)
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thank you..that will really help...
Think this is it.





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Old 04-07-2015, 09:37 PM   #20 (permalink)
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Think this is it.





Just got around to checking and this is the correct breakdown.
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Old 04-07-2015, 09:52 PM   #21 (permalink)
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I don't know if this will help, but there's a place in Atlanta, GA called Crystal Fit. They have a website with more info. I used them to get an acrylic crystal installed on a NOS case I mucked up when I did what you're about to do. I mailed it with a note describing the type of crystal I wanted installed, he emailed a price quote, I paid by PayPal and had it back in my hands within about 7 days. The "repair shop" at the mall quoted more money and had my case 2 months without touching it before I found the place in GA. That said, it is doable if you tread carefully. Good luck

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Old 04-07-2015, 11:44 PM   #22 (permalink)
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Wow. Forum wasn't sending me notifications that someone had posted. Sorry guys. So which type is it from the chart above?

To answer someone's question earlier, the outer turning ring of the slide rule will pop off, which I do once in a while to clean. Then I have also lifted off the inner slide rule ring to clean around the cursor, which also will come off when that inner ring is off. I'm not sure how the crystal is held on and whether it seats on the inside or outside. If inside, and I would have to remove the movement, that will probably wait a while. If it sits on top, that would be easier.
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Old 04-07-2015, 11:45 PM   #23 (permalink)
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Need one more post.
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Old 04-07-2015, 11:48 PM   #24 (permalink)
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This is not mine, but this is what I have, cursor and all. I need that bracelet, though. Mine has a black plastic band on it right now.

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Old 04-08-2015, 07:02 AM   #25 (permalink)
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Generally, when removing a crystal you'd want to have the movement removed first and once the bezels are off pop it out from the backside. If you try to remove it from the top with the movement still in the watch case you risk possible damage. The crystal usually is held in tightly by the gasket.
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