Another First Disassembly Thread - 7002 - Page 3 - Seiko & Citizen Watch Forum Japanese Watch Reviews, Discussion & Trading
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Old 01-10-2020, 09:18 AM   #51 (permalink)
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The last problem I made for myself was that I had installed the white plastic "dial ring" the wrong way so even though it looked OK, I couldn't get the completed movement to seat to the proper depth in the case. Once I got that figured out, everything went together smoothly.
Been doing Seikos for a couple years now (my first build, a 6119, was a thread here just like this) and just the other day I installed the dial spacer ring the wrong way!

Great build thread, these guys that are helping you are top notch and very patient. This is a wonderful forum.

Scott
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Old 01-10-2020, 10:23 AM   #52 (permalink)
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Thanks Gavin


"Would love to do something similar as yourself - I find these tasks documented like this very motivating - I just seem very ham fisted with things so small - but keep going at more modest tasks like dial and crystal swaps to get better when I find time." Guy's advice to buy a project 7002 was spot on. There's lots of spares available if you need them and lots of video support on how to do the actual work. I would usually have the 7009A YouTube video up on my computer and I would watch a step on video and then do it a few times. As a first timer, it was a huge confidence booster to have the video to watch. I worked with reading magnifying glasses and one of those magnifying desk lamps and it was not too bad. I am still amazed at how small the screws are when you look at them with the naked eye....

"Congratulations on the retirement." Thanks! Now I need to find a job.

"What movement are you going to have a crack at next then?" My personal preference are the quartz watches. My watches are the 7548, 7c43, and 7549 variety. I'd like to get a non-runner 7548 or 7549 and bring it back to life.
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Old 01-10-2020, 02:16 PM   #53 (permalink)
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It seems like you got the "bug" for tinkering with watches.

Have you fixed the bezel ball spring issue ? Have you removed the bezel after discovering the problem ? (some parts that go inside the bezel can be fragile and break/damage when removing or even installing the bezel)

Careful with those quartzes, being a lot of plastic in there, they're more fragile than their metallic counterparts. Also parts can be smaller. Not to mention there's also electrical stuff that, if damaged, might be good for the bin. Patience is key!
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Old 01-10-2020, 05:15 PM   #54 (permalink)
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Thanks Gavin


"Would love to do something similar as yourself - I find these tasks documented like this very motivating - I just seem very ham fisted with things so small - but keep going at more modest tasks like dial and crystal swaps to get better when I find time." Guy's advice to buy a project 7002 was spot on. There's lots of spares available if you need them and lots of video support on how to do the actual work. I would usually have the 7009A YouTube video up on my computer and I would watch a step on video and then do it a few times. As a first timer, it was a huge confidence booster to have the video to watch. I worked with reading magnifying glasses and one of those magnifying desk lamps and it was not too bad. I am still amazed at how small the screws are when you look at them with the naked eye....

"Congratulations on the retirement." Thanks! Now I need to find a job.

"What movement are you going to have a crack at next then?" My personal preference are the quartz watches. My watches are the 7548, 7c43, and 7549 variety. I'd like to get a non-runner 7548 or 7549 and bring it back to life.
Cheers for the video advice. That's my major concern not being able to work out how something goes back together!

I have a number of 7548s and a couple of 7c43s. I really like them and have sorted some day changeover issues with a couple of them.

Keep us all posted on your next project!

Sent from my Pixel 3a XL using Tapatalk
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Old 02-17-2020, 10:06 AM   #55 (permalink)
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Default Troubleshooting Question

So here's an update on this watch and a question: It continues to run well most of the time - so I guess that means it doesn't run well...


It will occasionally stop and always with the second hand on 4 seconds after the minute - with the second hand pointing to the 4 minute or 4 second marker.



It will run for hours/days so the hands are not interfering with each other.


I can get it going with a tap/shake.


Since it always stops at the same point, my guess is that it is not stopping due to a general dirty or lubrication issue but more likely due to a very particular piece of dirt in a very particular place or on a particular wheel/gear.


Of course I can tear it down again and make sure everything is clean but I'm curious what you all think might be the specific culprit with these symptoms.....
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Old 02-21-2020, 08:56 PM   #56 (permalink)
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Well, that sorted itself out apparently....


Been going strong with no stoppages or loss of time for a couple of days. I put it down to test the power reserve and it lasted longer than 24 hours before I put it back on.


So, the only thing left to do with this one is fix the click ball....
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Old 02-22-2020, 01:23 AM   #57 (permalink)
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[QUOTE=Barfkity;2893715]So here's an update on this watch and a question: It continues to run well most of the time - so I guess that means it doesn't run well...


It will occasionally stop and always with the second hand on 4 seconds after the minute - with the second hand pointing to the 4 minute or 4 second marker.



It will run for hours/days so the hands are not interfering with each other.


I can get it going with a tap/shake.


Since it always stops at the same point, my guess is that it is not stopping due to a general dirty or lubrication issue but more likely due to a very particular piece of dirt in a very particular place or on a particular wheel/gear.


That would be my guess on it. The grit or whatever may have moved for now and never trouble it again or it may get between the wheel teeth tomorrow.....
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Old Yesterday, 11:08 AM   #58 (permalink)
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Default Click Ball Sorted...Watch done for now!

The final thing that didn't work on this watch was the click ball. The click ball hole just appeared to be completely full of rust. I suspected that the ball and spring was down in there but I couldn't make any headway with cleaning it out or getting any movement. I was amazed to find a 1.02mm drill bit in my local hardware store. I used it by hand - holding it in place with one finger and spinning it with other fingers in the same way that most of us use a screwdriver. I could hear it cutting away at metal and debris and was rewarded with a lot of rust coming out of the hole. Then, what appeared to be about half of the click ball fell out! You can barely see it in this picture inside the bezel ring...
ClickOut.jpg
When the click ball was out, I was able to grab the spring and pull it out and it was actually in good shape!
SpringOut.jpg
I've read the posts about pros and cons of using a ball point pen ink ball and I agree with the idea that a proper click ball should be used so I'm going to order some, but I don't have any right now so I went with the ball point pen ball temporarily. It was pretty easy to get out and place on the spring.
PenBall.jpg
Getting the bezel on with the click ball in place was another story. It did not go well for me. My main problem was getting the bezel on with the bezel gasket in the correct place. It seemed to keep coming out of it's groove in the bezel and getting jammed between the bezel and the crystal retaining ring. There didn't seem to be any technique that made this work - it seemed like it was just down to luck. Maybe if the click ball was held in place inside it's hole this wouldn't have been such an issue but trying to get the click ball in place and get the bezel on was really frustrating...


Finally got it though. And am rewarded with a nice, firmly rotating bezel with a satisfying click! Now I just need to get a nicer strap for this one and I think I'll be done with it for awhile.



When I get an actual click ball, will it "snap" into the click ball hole and stay there? Or will it be loose just like this ball point pen ball?
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Old Yesterday, 02:55 PM   #59 (permalink)
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Originally Posted by Barfkity View Post
The final thing that didn't work on this watch was the click ball. The click ball hole just appeared to be completely full of rust. I suspected that the ball and spring was down in there but I couldn't make any headway with cleaning it out or getting any movement. I was amazed to find a 1.02mm drill bit in my local hardware store. I used it by hand - holding it in place with one finger and spinning it with other fingers in the same way that most of us use a screwdriver. I could hear it cutting away at metal and debris and was rewarded with a lot of rust coming out of the hole. Then, what appeared to be about half of the click ball fell out! You can barely see it in this picture inside the bezel ring...
Attachment 442151
When the click ball was out, I was able to grab the spring and pull it out and it was actually in good shape!
Attachment 442153
I've read the posts about pros and cons of using a ball point pen ink ball and I agree with the idea that a proper click ball should be used so I'm going to order some, but I don't have any right now so I went with the ball point pen ball temporarily. It was pretty easy to get out and place on the spring.
Attachment 442155
Getting the bezel on with the click ball in place was another story. It did not go well for me. My main problem was getting the bezel on with the bezel gasket in the correct place. It seemed to keep coming out of it's groove in the bezel and getting jammed between the bezel and the crystal retaining ring. There didn't seem to be any technique that made this work - it seemed like it was just down to luck. Maybe if the click ball was held in place inside it's hole this wouldn't have been such an issue but trying to get the click ball in place and get the bezel on was really frustrating...


Finally got it though. And am rewarded with a nice, firmly rotating bezel with a satisfying click! Now I just need to get a nicer strap for this one and I think I'll be done with it for awhile.



When I get an actual click ball, will it "snap" into the click ball hole and stay there? Or will it be loose just like this ball point pen ball?



Good work


Is the ball from the pen too large for the hole? If it isn't and sits in the hole nicely you don't need another click ball as the pen ball will last a long time.


If it's too big I could send you a couple of the correct size ss clickballs for free.



When I fit a bezel like this the ball rests in the hole and I put some silicon on it to keep it there and put the bezel on starting with pushing it down on the ball and working down from there.
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Old Yesterday, 04:12 PM   #60 (permalink)
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A 1mm ball is the required size and the replacement ball will not snap in, it will be loose.
The original, is a ball and spring inserted into a stainless steel tube which is then peened over to stop the ball from comming out, the assembly is then pressed into the case.
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Old Yesterday, 04:23 PM   #61 (permalink)
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With the rotating ring gasket, I had the same issue with it jamming between the ring and the crystal. I tried several times and used silicon grease but to no avail

The Seiko tech sheets for the 7548 show the gasket being stretched gently before placing into the rotating ring and this worked for me. Once it's working its fine but seems to need to be done whenever the ring is removed.
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Old Yesterday, 04:39 PM   #62 (permalink)
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The pen-click-ball fits down into the hole - it just wouldn't stay down in there while I put the bezel on. It also wouldn't sit even with the top of the hole. It sat proud of the case on several visible coils of the click ball spring. It is working great as it is now!


I think I saw that stainless steel tube down in the hole. At first I thought it was the top coil of the spring. I guess a "perfect repair" would involve pushing the spring and ball down into the tube and then re-peening the tube to hold the ball in.....


I'll try the stretching the gasket technique next time I have to do this.


Thank you all for the input!
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