Seiko 6106 Movement "in Loving Memory"

[Lawson]

Service of a Seiko 6106 Movement

 

 

Sorry I have been slack posting movements I've serviced at home, but work has been busy, and the movements I've been servicing are not that different than what I've already posted ... just more of the same.

Well, I got another one of my Mum's friends who asked if I could repair their watch that was given to him on his wedding day by his wife: who has now sadly passed away :(

Of course I said YES!!  And it turned out to be a lovely old Seiko; but a little worse for wear :unsure:

 

The hands had fallen off, and the plexiglass was so scratched you could hardly read the dial.

 

After opening up the caseback, there was evidence of corrosion starting to set in ... but thankfully it was caught in time.

 

Here's what the intact movement looks like.

 

Once the automatic works were removed, it was obvious this poor old thing has never seen a service since it was purchased in 1974.  Very dirty, and very dry.

 

This movement has a complex keyless works which included a pusher for rapid date change, so before I started removing the dial side, I pulled the Balance and Pallet Fork ... just to be sure to be sure :)

Notice how dirty the movement is from this angle as well.

 

Ok, on to the dial side, to remove the calendar work and the Keyless work.

 

Calendar work is pretty much like all Seiko's ... minus that annoying phillipshead screw, thank the Lord!

 

Here's a picture of the Keyless work, with the incorporated pusher system for date change.

 

More of a close-up of the pusher arm

 

There is also a large spring for the pusher mechanism

 

Once that was all disassembled, it was back to the Train Gears and Mainspring.

Notice this movement also has a hack that stops the Train Gears; instead of the Balance ... all very interesting :)

 

And for my good mate Bob ... here's the picie of the Automatic work mate :P

Look how dirty and nasty the Eccentric Bearing is ... Ewwwww!

 

Here she is coming back together after a long bath in the suds

Lookin much better!

 

I polished the case, and spent about 15mins with Ploywatch trying to polishing all the scratches out of the glass ... but it was just too far gone :(

Still at least you can read the Dial now :P

 

Off to the Timegrapher and in typical Seiko fashion, once cleaned it purrs :D

 

Hope you enjoyed this post, and I'll try to post more often guys.

 

[Geo]

Good to here from you again Lawson, especially with another well illustrated post. I'm really glad that work is going well for you!

[frenchie]

Very nice post !! well documented and an impressive result.

[bobm12]

Excellent post as always Lawson, me too am glad work keeps you busy and in heaven! We were already missing you!

 

Thank you for showing me the automatic assembly...and the excellent pictures of the whole process! I believe this is one of the most outstanding results -- as seen in the time grapher -- considering the age of the movement. As a coincidence, I ordered a bunch of those from Ramon in ebay and will soon be following track, trying to make work some of them.

 

As a side note, since they are not runners and some have an issue with the hairspring (missing, broken, twisted, etc) I was wondering if there is a way to find an equivalent hairspring to fit in the balance wheel and how to go about ordering it. If you have any information -- or any other member reading this -- on the subject/process/how to, please let me know or create a new link. it will be deeply appreciated.

 

Cheers,

 

Bob

[Blacklab]

Nice one Lawson, very well presented as always.

 

Bob,

 

Good idea about the hairspring, although I will have to get yet more kit to fit one. I have a 6106-8240 in grade A nick & a 6106-5410 (my Dads old watch) with balance issues. Managed to track down a second hand balance (no NOS to be had) but was still being a git & has been on the back burner for a while. The balance is listed as part No. 310.611 but I am informed that 310.614 will fit, Stefan AKA scillachi61 on fleabay has some  & have just ordered one(not cheap unfortunately, but that's the price of hens teeth). Will let you know how it works in due course.

[bobm12]

Thank you Blacklab, that'll be great, keep me posted!

[noirrac1j]

Fantastic post Lawson, and excellent work on the Seiko. What oil/grease do you use for the autowinder?

 

JC

[Lawson]

bobm12, on 01 Dec 2014 - 03:49 AM, said:

As a side note, since they are not runners and some have an issue with the hairspring (missing, broken, twisted, etc) I was wondering if there is a way to find an equivalent hairspring to fit in the balance wheel and how to go about ordering it. If you have any information -- or any other member reading this -- on the subject/process/how to, please let me know or create a new link. it will be deeply appreciated.

 

Cheers,

 

Bob

 

Hey Bob,

 

For Seiko spare parts I use "speedtimerkollektion" on fleabay.  His prices are very reasonable, and if he doesn't have the Seiko part you need listed, just send him a PM in ebay and he normally has it in stock.

 

Hope that helps my old friend :)

[Lawson]

noirrac1j, on 01 Dec 2014 - 12:21 PM, said:

Fantastic post Lawson, and excellent work on the Seiko. What oil/grease do you use for the autowinder?

 

JC

 

My oils at home are a little limited ... D5, 9010, 9501, 8200, 9415, and silicon grease.

 

This is what I used ...

On the Eccentric Bearing - D5

On the jewel for the Pawl Arms - D5

On the Pawl Gear pivots - 9010

 

It seems to have done the trick quite nicely.

[Lawson]

Also if anyone is wondering why there is a rub mark around the outer edge of the Base Plate and the Mainspring Housing, that is the sign of an Eccentric Bearing failure.  It's still working in this particular watch, but it's being to foul and will have to be replaced ASAP.

 

 

Just thought I'd add that little note to help others in their fault finding.

[Blacklab]

You may have already noticed but there's been a discussion about this problem here: http://www.watchrepairtalk.com/topic/1136-seiko-6309a-rotor-bearing/

[bobm12]

Hi Lawson,

 

Thank you for the link! I'll sure use him soon!...and thank you for the nice tip.

 

Bob

[xzqt]

Didnt realise that hacking is also found on 6106.

Thoughts only on the 6105B.

[ramrod]

Didnt realise that hacking is also found on 6106.

Thoughts only on the 6105B.

 

that is why this is such a great movement. i have 7 of them and can't get enough. now, i only wish it was a hand winder, too.

[stroppy]

Great photography!  I was interested to see some plastics in the movement, even though it's an early 70s watch.