The below post was posted on the Seiko-Citizen website on the 19th Aug 2010.
http://www.thewatchsite.com/index.php/topic,7678.0.html
This 6105-8110 came my way... apparently stopped working about a week ago...???!!!
Lets take a closer look,
the rear end...6105-8110 from 1974..don't you love a neat rear end? I also like the fact the owner engraved the case and not the easily swapped out caseback..if you're going to stump the theives.. do it properly.
but engraving the sides of the case as well is just overkill..............the writing may be Arabic but the words could be Jawi, using Arabic characters to form Malay words.
The famous LOCK crown.........
which does not lock anymore..the pin has been worn away.
Caseback was tight but came off with a bit of persuasion..didn't look too bad at first.
Stem came off without drama and the movement popped right out..
Dial came off nicely too, dial feet were OK which is a surprise.
For those of you who have never seen the backside of a 6105 dial............3 N..? knowing what we know of Seikos dating system I would like to hazard a guess…November 1973? This ties in with the case back date of Feb 1974.
The inside of the crystal.........
Inside the caseback...serviced in 2000? Skimped on the gaskets did we?
Hands...
This is the back of the hands, not the previous photo... can't blame you if you were wondering.
Pic with the autowind rotor removed.. the blackish stuff is probably oil mixed with water, too much oil to begin with.
Under the dial
With the main bridge removed..look at the click spring.....that's water.
Going train visible.. hack lever.
Setting works
The bare main plate.
Findings..
The going train was shot ...the pallet-fork, escape wheel and balance all had broken pivots. The other wheels were not too good either. Hairspring was toast as well…rust. This is not much of a problem as I had some parts (used).
What killed the project was the setting lever, the date-setting gear had cracked, probably due to rust, and as a result the watch wouldn't set. I didn't have this particular part and while I could have removed the gear assy from the lever of another movement and re-staked it to this one, it was not a repair I would have been comfortable with. I would have tried it if it had been my watch though.
Conclusion
The watch was returned to the customer. I told him one option would be a heart-transplant, replacing the bad movement with a 6309 but this would require the crown to come off the stem without breaking so I could reuse it, he will think about it.
And no...he will most likely not sell the watch as it was his fathers....
Hope you enjoyed the pics.
Anil