marshy
Can't Tell Time
Posts: 7
|
Post by marshy on May 2, 2015 22:43:57 GMT -8
Greetings to all I just joined this fantastic site and I'm seeking any advise on repair of my KS 5626-7040. I purchased this as it is my Birth Year and month watch. It runs fine but the day date dial movement is faulty. I brought it to my watch repairer and he said some gears are damaged but cannot give me a definite description or name to the part required for repairs. I'm seeking anyone who may have any inkling what parts I should source for for repairs to be done. I'm really hoping to get this watch fully repaired for a lifetime with me till I'm 6 feet under. Thanks so much in advanced. Attachments:
|
|
|
Post by doomguy10011 on May 2, 2015 23:05:29 GMT -8
This movement series uses plastic gears for the day and date, and with age and usually improper date setting (between 9 pm and 4 am roughly) the gears break. I don't think you'll be able to find replacement parts easily, and even NOS ones I've read are too worn to be used, if they can be found in the first place. I think your best bet would be to find a donor watch for parts, maybe a 5606. These will also be a bit hard to find with the date mechanism intact, but if you can get one make sure to send it to a trusted watchmaker, as these gears are very delicate and prone to breaking.
|
|
marshy
Can't Tell Time
Posts: 7
|
Post by marshy on May 2, 2015 23:35:07 GMT -8
Hi Thanks! So any 5606 will do? While I am also trying to find parts, what part description should I be looking at? Or perhaps its a whole part assembly?
|
|
cobrajet25
Needs a Life!
"Underweared curmudgeon!"
Posts: 3,357
|
Post by cobrajet25 on May 3, 2015 2:15:30 GMT -8
What doomguy said is partly true. But the problem is not that the gear is broken while setting. It is that the material the gear is made out of doesn't age well. The day/date are quickset by a plastic gear that is press-fit onto a metal hub. The hub is turned by a metal gear on the bottom of the hub by the keyless works when the crown is turned. This plastic gear is what actually engages with the day/date wheels to set them. The gear and hub are mounted onto a small arm that sits between the day wheel and date ring. When the crown is turned one way, the arm swings over and engages the day wheel. When it is turned the opposite way, the arm swings the opposite way and engages the date ring. This plastic gear eventually shrinks and cracks, thus losing it's grip on the metal hub that drives it. The gear slips on the hub instead of turning the day wheel and date ring, and the day/date will not change. The picture below will illustrate this a bit. This is an EXTREMELY common problem with all 56-series movements. Unfortunately, NOS parts are not available. Even when found, NOS parts often exhibit the same problem. Some people believe that using plastic for this gear is Seiko 'cheaping out' on a critical part. But this isn't true. The plastic gear is designed to slip on the metal hub, and was used to prevent precisely the damage doomguy mentions. When the quickset is actuated while the date is doing it's normal midnight change, the gear slips on the hub and prevents damage. Normally, the only remedy is to find a donor watch with a properly operating quickset and transfer the needed part.
|
|
marshy
Can't Tell Time
Posts: 7
|
Post by marshy on May 3, 2015 2:21:58 GMT -8
Yeh... I've been reading up on this and pretty much understand what's going on. I've read that the 5619 Cal metal wheel may be an option as replacement part. seikoholics.yuku.com/topic/515
|
|
|
Post by SeikoPsycho on May 3, 2015 2:32:07 GMT -8
Great description of the issue at hand Aaron.
The part number is: 981560. It may take some searching but they can be found.
Sounds like another project for Adrian!
|
|
cobrajet25
Needs a Life!
"Underweared curmudgeon!"
Posts: 3,357
|
Post by cobrajet25 on May 3, 2015 2:35:31 GMT -8
The 5619 does not use a metal wheel, and has the same problem. A lot of the information about this problem floating around on the Net is quite old and outdated.
The wheel is not available a la carte...it is integral with the "corrector rocker" arm, as Seiko calls it. So the part itself is different as the 5619 is a GMT movement. All 56-series movements except for the 5619 use PN 981560, the 5619 uses PN 981569. I have a NOS 5619 and a few used ones...none has a working quickset.
The metal parts were apparently made recently by somebody overseas in a short run.
|
|
marshy
Can't Tell Time
Posts: 7
|
Post by marshy on May 3, 2015 2:40:25 GMT -8
|
|
cobrajet25
Needs a Life!
"Underweared curmudgeon!"
Posts: 3,357
|
Post by cobrajet25 on May 3, 2015 2:45:00 GMT -8
Hmmm...not cheap, but it should!
|
|
marshy
Can't Tell Time
Posts: 7
|
Post by marshy on May 3, 2015 2:47:00 GMT -8
Great! Yah not cheap but hey.. It's a rare thing.. Thanks!
|
|
|
Post by SeikoPsycho on May 3, 2015 2:48:58 GMT -8
I can check my stash to see if I have one available but it won't be until later today. I've had them in the past.
|
|
marshy
Can't Tell Time
Posts: 7
|
Post by marshy on May 3, 2015 3:00:07 GMT -8
Sure thing! Appreciate! Hope to get this watch up and running well.
|
|
Adrian-VTA
Global Moderator
Adelaide, South Australia
Posts: 5,327
|
Post by Adrian-VTA on May 3, 2015 3:16:33 GMT -8
I can do a little fix on the day/date rocker if you're stuck. About 80% of them don't work. The plastic on the star part of the assembly cracks and they don't work. We have a project going atm to find a solution with Noah, Hermann and a few others. I managed to make a successfully fitting part using polyurethane casting, but it slips. I think I can solve it. We have also found a source of a metal part. Beyond that we've considered photo etching or laser cutting a part.
|
|
marshy
Can't Tell Time
Posts: 7
|
Post by marshy on May 3, 2015 3:23:11 GMT -8
What you guys are doing is fantastic.. The efforts and love put into it..
|
|
|
Post by SeikoPsycho on May 3, 2015 3:46:44 GMT -8
I have a nos part available. PM sent.
|
|
|
Post by russtmurray on May 3, 2015 7:55:15 GMT -8
I can't add anything here but kudos to those who chimed in with their advice and suggestions. That's what makes this forum rock!
|
|
|
Post by sweffymo on May 3, 2015 15:56:45 GMT -8
hal0eight, when you guys figure that out I'm going to send you my King Seiko so that you can take care of it! I have a 5246 which can also have this problem if I'm not mistaken. Except mine is mostly having issues with the hand winding and day/date quickset.
|
|
solex
Timekeeper
Posts: 535
|
Post by solex on May 4, 2015 9:22:32 GMT -8
I can do a little fix on the day/date rocker if you're stuck. About 80% of them don't work. The plastic on the star part of the assembly cracks and they don't work. We have a project going atm to find a solution with Noah, Hermann and a few others. I managed to make a successfully fitting part using polyurethane casting, but it slips. I think I can solve it. We have also found a source of a metal part. Beyond that we've considered photo etching or laser cutting a part. I'm definitely in, please let me know when you have a part ready. I have temporarily repaired my with crazy glue, but would like a better solution.
|
|
|
Post by doomguy10011 on May 4, 2015 10:25:49 GMT -8
I tried a super glue fix on a 5606 Lord Matic. Worked for a bit, then the gear broke apart again. I think I was a little too hasty and didn't let the glue set long enough. I can do a little fix on the day/date rocker if you're stuck. About 80% of them don't work. The plastic on the star part of the assembly cracks and they don't work. We have a project going atm to find a solution with Noah, Hermann and a few others. I managed to make a successfully fitting part using polyurethane casting, but it slips. I think I can solve it. We have also found a source of a metal part. Beyond that we've considered photo etching or laser cutting a part. I'm definitely in, please let me know when you have a part ready. I have temporarily repaired my with crazy glue, but would like a better solution.
|
|
|
Post by igniferroque on May 5, 2015 12:25:39 GMT -8
I'm not an expert or anything but I have heard some scary stories about super glue releasing vapors that can damage dials and other watch internals if it is sealed in. I would be hesitant to use anything like that in a watch.
|
|