Sekonda with rusty stem holder

[p2n]

Picked up a Sekonda 17 Jewelled USSR wrist watch at the carboot on sat. Just started looking at it. Hairspring is mangled but the biggest problem is getting the stem out.

I gather there is a small button to release it, but it's all corroded and won't move. Any suggestions on freeing this up?

http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&&2uswk&Poljot_2614_2H

The lever moves but the button to lift it won't budge.

 

[rogart63]

Yuo have to get that setting lever out somehow. Drill or cutting tool is an option. Cover it in oil and maybe heat.  You could probably buy a donor for little money so i would do what it takes. If it goes wrong no big deal i guess.  Save the parts get a new setting lever. 

[p2n]

I was wondering if I could use the staking kit to drive it out? Would this work or would this distort the plate?

Looking at the parts list from Cousins - would this part

Edited May 14, 2018 by p2n

[Chopin]

How come you can't take it out ? Isn't it attached to the plate by a screw ??

[anilv]

Can't you poke it out from the other side?

Try to push the crown in and out several times.. this will allow any penetrating fluid to go in the hole and help the process.

Anilv

[p2n]

It appears to be a simple pin on the setting lever that goes through the plate. There is no retaining screw (it was held in by the rest of the keyless works). The plate moves back and forth when you move the crown in and out, but the pin itself does not rotate. It's seized solid.

Here is pin from the other side:

9 hours ago, rogart63 said:

Drill or cutting tool is an option

I think it's going to come down to the drill!

 

[Chopin]

If it was me I would try to scrape off as much rust as possible, maybe somehow try and get some anti-rust substance on it or dip just that portion of the movement (only if it's safe) and then try and gently pull with a pair of levers or something...

The pin itself is most likely placed in between the 2 plates and it might have a spring as well...

[anilv]

I still think you could be able to push it out from the other side.

The way this works is pushing the pin (with the dimple) lifts the set-lever away from the stem allowing it to be released.  It stands to reason that this piece needs to move in and out. The picture with the set lever bridge shows the part which holds the set-lever down which is effectively a spring holding the set-lever in place.

With the watch assembled this would be the only way to remove the stem (unless it has a 2 part stem) without removing the hands,dial etc.

Anilv

[p2n]

And it's ...... OUT!

There is a lot of corrosion in the hole I need to clean out. Any tips?

 

No - it didn't take me three days lol. Had to find my old PCB drill and get it running again - everything is in a mess because of the upcoming house move. It's a pain but at least at the new place I'll be able to have a space to work on watches indoors where I don't have to move out of the way each meal time lol.

 

Also now I've found the drill (it was where I thought it was - in a box, but not the box I thought it was!) I can do the missing tooth on the pocket watch, and the crown wheel jobs.