Big Waltham W Seiko Movement Rebuild.

[noirrac1j]

Hello,\

Thanks for all the help in getting this one out of the case and in letting the mainspring down. this is another first time for me, as I've not done a Japanese watch. it was a good experience!

 

Here goes:

The movement has just been cleaned at this point. This watch was running but had previously been over-oiled

 

 

I thought about leaving the mainspring because I still haven't received the winder but when I saw the barrel I knew this one had to be cleaned....

 

very dirty!

 

all clean

 

I began the re-assembly:

 

replace the balance...

 

and now for the autowinder---this time I don't lose any parts and everything works out

 

Now for the front:

 

and the hands...

 

Unfortunately the recasing gets me at a bad time and I struggle wit the tiny crown/stem replacement and lose some of the lume from the minute hand in the process...oh well.

 

All in all a good learning experience,. I didn't realize it, butthis Seiko does not have a way to hand-wind because there is no crown wheel (winding pinion) that engages intermediate wheel to wind the barrel. All autowinding on this one.

Edited October 25, 2014 by noirrac1j

[Geo]

Good job and great experience for you Joe.

You're correct, it is an auto only, but you can wind it with a screwdriver before installing the auto mechanism to aid fitting the balance and also check that all is well.

[Blacklab]

Nice work, is it a Seikosha 2451/Seiko 6601? Got a couple of these as Seiko Sportsmatics, excellent timekeepers. As far as I can tell the vast majority of Seiko autos are non hand winding with the exception of the 4xxx series.

[bobm12]

Great job JC, and good experience gained! By the way, apart from the dirt, extra oil, etc, it is of note that Seiko uses a black lubricant for the mainspring. Maybe this model had some...it would look like dirt.

Edited October 25, 2014 by bobm12

[noirrac1j]

Hello. Thanks for the comments. I think it is a Seiko 2451 because I sw a Seiko sportmatic with an identical looking dial and movement details and the description said the movement was 2451. Its a good loking watch and runs well. I wore it yesterday. Pretty soon I am going to put all of my overhauls on Ebay to get an Omega manual-wind Speedmaster>

 

JC

[Geo]

Pretty soon I am going to put all of my overhauls on Ebay to get an Omega manual-wind Speedmaster>

 

JC

 

Way to go Joe!

[Gary]

Very nice! Awesome! JC are you cleaning by hand? Thank you for sharing! Looking forward to the next one!

[noirrac1j]

Yes I do everything by hand. I have a large desk that is occupied with diferent little glass jars filled with Naptha. I give an initial soak (maybe 10-15 minutes), and then a rinse in clean naptha. For more difficult dirt on top and bottom plates I take it to the sink and gently wash it with dawn detergent and an old soft toothbrush. After that I dry it and do another dunk in fresh naptha to get rid ao any residual water. Sometimes I hit the bigger parts with compressed air froma can to dry them faster. Its not too bad and I can do a watch every two days--Mostly late at night. And that's with all the other trappings of life!

 

JC