Seiko 7546-604X Crown Assembly - Seiko & Citizen Watch Forum Japanese Watch Reviews, Discussion & Trading
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Old 07-05-2017, 12:30 PM   #1 (permalink)
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Default Seiko 7546-604X Crown Assembly

Here is a quick guide as to how the crown is sealed on the 7546-604X series among many others.

Crown with no gasket.


Case tube with gasket installed.


Case tube with plastic gasket installed.


Case with crown installed.


Excuse dust, this is a case and crown assembly I'm just now dissasembling. Hope it helps.
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Old 07-05-2017, 12:50 PM   #2 (permalink)
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Nice! Thank you.
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Old 07-05-2017, 04:39 PM   #3 (permalink)
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Interesting to say the least. Thanks for posting!
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Old 07-05-2017, 04:56 PM   #4 (permalink)
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Thanks
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Old 07-06-2017, 08:48 AM   #5 (permalink)
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Thanks a lot Guy.
I suggest there should be a "Casing and Gasketing" section, with posts like this to help restoring our timepieces.
Gaskets dimensions would help, as some of them are no more available.
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Old 07-06-2017, 10:20 AM   #6 (permalink)
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I will update this thread with some measurements when I get a chance.
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Old 07-07-2017, 09:02 AM   #7 (permalink)
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Thanks for this valuable information.
And what an coincidence, because today I received my first 7546-6040.
I am astonished how nice this watch looks in reality.


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Old 07-07-2017, 05:18 PM   #8 (permalink)
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Quote:
Originally Posted by fishwatch View Post
Thanks for this valuable information.
And what an coincidence, because today I received my first 7546-6040.
I am astonished how nice this watch looks in reality.


Sent from my iPhone using Tapatalk
Needs pictures!
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Old 07-08-2017, 10:31 AM   #9 (permalink)
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How inattentive from my side. Sorry.
This night only a shot from my mobile is possible. Tomorrow I can post more.




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Old 07-08-2017, 10:52 AM   #10 (permalink)
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Very nice! A 6060 caseback correct? All looks in excellent condition. Do you think you'll replace the crystal? Doesn't look too bad from that pic. They can be awkward to sort out tho..
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Old 07-09-2017, 04:53 AM   #11 (permalink)
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I am not an expert for this watch but caseback looks fine for me.
Regarding crystal I had a first check in the internet but it seems to be difficult to find them AND to replace them. Mine isn't bad so I could also stay with the current one. Let's see. Or do you recommendation where to buy them. Are there generic sapphire available?







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Old 07-09-2017, 06:43 AM   #12 (permalink)
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Correct caseback which is good. Two sold on the forum that were completely franken and not disclosed as such.
The crystal part number is what you need. The diameter is 30mm and 1.5mm thick but you need a decent bevel edge to clear the bezel.
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Old 07-10-2017, 10:16 AM   #13 (permalink)
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Thanks for the write up! It's posts like these that really create a ton of value on the forum.


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Old 07-10-2017, 11:01 AM   #14 (permalink)
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Nice post! The crystal retaining/gasket assembly on this watch was another head-scratcher for me when I put a new crystal in my -6049. You're making me wish I'd taken some pics at the time to post here and share the oddity of it all...
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Old 07-10-2017, 11:36 AM   #15 (permalink)
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Quote:
Originally Posted by twall3 View Post
Nice post! The crystal retaining/gasket assembly on this watch was another head-scratcher for me when I put a new crystal in my -6049. You're making me wish I'd taken some pics at the time to post here and share the oddity of it all...

Cheers twall3.
Had these steps in another thread but put it in a dedicated one. Kinda shows the gist.

https://www.thewatchsite.com/34-watch...-assembly.html
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