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Help Needed on 6139 Calendar Mechanism

jdrichard

By jdrichard
in Watch Repairs Help & Advice

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jdrichard Distinguished Member

jdrichard

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Sorry for the crappy video but I really don't understand how this day date mechanism works and there does not see to a gear that turns the day wheel like on other Seiko divers. So any recommendations? I have fiddled with it for 2 hours and cannot see how it might work. Note that I only have one gear on the stem. Is there one missing. Thought I had all the parts. Ahhhhhhhh!

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CKelly WRT Addict

CKelly

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Maybe this will help. The date on a 6139 is changed by pushing in on the crown. There is a two part lever that is then pushed toward the center which advances the date. Push in and date advances-push a bit farther and day advances.

Charles K

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CKelly WRT Addict

CKelly

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Looking at your video it seems you may be missing a part. If you look to the left of the crown toward the center you will see two small posts and if I remember there should be a small piece attached there. If you push in on the crown you should still see the part that connects to the stem move.

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CKelly WRT Addict

CKelly

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I just happen to have a donor movement and if you look in the area where my screwdriver is pointing you will see the posts I mention as well as the part that I think is missing in your video. Now my picture still shows the calendar plate in place but I think you can get the idea.

 

DSCN3040.JPG

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jdrichard Distinguished Member

jdrichard

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The strange part is that the stem spins free until I pull out on it and then it connects to the time gears. If I push it in all the way, it then moves the little arm that changes the day. So in its normal position it turns nothing and just moves freely.

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ricardopalamino Distinguished Member

ricardopalamino

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It sounds like it's performing like it's supposed to . I just checked 3 of my 6139 Pogues and the crown and stem turn freely, but of course there is an inner bezel on this model that turns in the fully in position . I checked 2 of the 6139 Helmets I have and the stem turns freely in the fully in position , the day and dates change by pushing in the crown as explained in one of the other posts .

jdrichard Distinguished Member

jdrichard

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Looking at your video it seems you may be missing a part. If you look to the left of the crown toward the center you will see two small posts and if I remember there should be a small piece attached there. If you push in on the crown you should still see the part that connects to the stem move.

So what you are saying is the both the day and date are changed by pushing in on the crown and not by turning the crown (advancing the time will also change the day and date I suspect)

CKelly WRT Addict

CKelly

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That's the way it works. Push it in and date changes- push a bit farther and day changes. Just when you want to change the day you can't let stem back off.  I went back and looked at your video again and sure enough the part was there. The way it works is the first part has a tip that pushes the date ring when it pivots when stem is pushed. If you continue to push then the day advances. When stem is pushed all the way in nothing will happen unless you have a model with a rotating internal bezel then rotating the stem causes that to move.

CKelly WRT Addict

CKelly

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Yes advancing the time will change both day and date. One you get day set about all you ever have to do after that is to change date when needed, if you keep watch running. It's a little tricky sometimes to get the feel of how much to push in the stem.  

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jdrichard Distinguished Member

jdrichard

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Thank you CKelly, it worked. I applied a small bit of 9010 to the teeth of the date wheel because it was sticky and that little arm moved the date wheel and the day wheel with a bit more depression. Big thanks for the hand, I did waist a bit of time thinking I had missed something and I had not.

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CKelly WRT Addict

CKelly

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Glad you got it figured out. I really like those chronographs. Been working on them a lot lately since they are a little less expensive than some others and I am enjoying working on them. Back in the early 70's my Dad got a 6139-6005 with the dark blue dial and I thought it was the best watch I had ever seen at the time. I now have that watch and I can't begin to say how much it means to me. I am thinking about giving it to my daughter as she can just barely remember her granddad.

Charles

  

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