A Screw Fell Out From My Next Project

[PhilB]

I bought a seiko automatic from ebay which ran intermittently.

 

After opening the case and turning the movement over a screw fell out.

 

The automatic pendulum seems to be turning better now and it's running.

 

I wonder where the screw has came from lol

[bobm12]

Excellent fix Phil, I wonder what movement was that! It should say it on the "oscilating weight with ball bearing" (I think you call it pendulum and some other people call it rotor) or, if older, on the main plate.

 

Also, post a picture! I'd love to see it. By the way, if you post a picture of the screw I might be able to tell you where it came from...

[PhilB]

Here it is.. it's movement no. is 6309A   Seiko5

hang on until I get this flickr link working

Edited October 1, 2014 by PhilB

[PhilB]

[Blacklab]

Looks like its from the barrel & train bridge at the top.

[bobm12]

I think I'm looking at the hole where it belongs in your picture if my eyes don't deceive me! Maybe a barrel and train bridge screw? It takes 3 that bridge. Check out the service manuals below!

 

6309A.pdf

 

6309B.pdf

 

 

[bobm12]

Nice, we posted at the same time Blacklab!! :)

[PhilB]

Well you guys are correct, it's gone back in.

 

The watch face is missing the Seiko logo, so it must have been out of the case at some point.

 

I had planned on stripping the movement but now I'm not sure, I'll keep an eye on it and if it's still going tomorrow, I'll consider leaving it.

[PadraicB]

Is the balance okay? Looking that loose screw, I'd be worried about whether it found it's way to the hairspring...

[PhilB]

Seems to be ticking along nicely :)

 

I'd be surprised if a loose screw was the only thing wrong with it tho. 

[PhilB]

The movement has been running fine for the last 24hrs, so I'm reluctant to follow my original plan to strip and rebuild it.

It could do with a replacement crystal and some work on the case but I'm not sure if I can replace the crystal without any special tools.

[bobm12]

You might need a press to push it out and then press in a new crystal. Don't forget to replace the pressure ring that holds the crystal in place...if it is pressure fitted as most of those are. Still, a picture of the front will help!

 

Here is an inexpensive one:

 

 

[PhilB]

Here it is. 

 

I'm not sure what to do with it, I can keep it as my daily wear (I don't wear a watch atm).

 

Replacing the crystal, sourcing a Seiko logo for the face and polishing the case (assuming it's stainless steel) would smarten it up nicely.

 

I paid around £8 for it.

 

Edited October 3, 2014 by PhilB

[bobm12]

It looks pressure fit all right but I can't tell for sure. Maybe changing the dial...but I'll look around and see if I have a silver colored Seiko logo. Those dials are about 28mm in diameter...maybe a Rolex dial might....mmm :devil:  NOT!

Edited October 3, 2014 by bobm12