Zenith 2542pc

[AxelSLK]

Hello,

Long story short, had to replace the main bridge on a zenith 2542pc movement. When ordering the part I saw that there was a difference of the placement of the movement id. Put everything together and it seemed to be a 1:1 fit until I got to the automatic works. Seems like one of the screws don’t fit on the automatic works bridge.

When looking at the pictures it seems to be a slight difference on the barrel bridge and that could be the issue. There is a slight chance that there is something in the way as well but I wasn’t too keen on tearing it apart when I just finished it. Do anyone know if it’s suppose to fit or if I need to get some other parts? 
 

First pic is before replacing the bridge with the circle around the screw that doesn’t fit after the replacement. 

Second pic is from google with the main bridge that has the movement written on the same place as the replacement bridge I got.

 

I dunno, maybe it’s only the screw or something blocking it, what do you guys think?

[AndyGSi]

Can you confirm what actual part you got as the ID is on the Main Plate not the Main Bridge?

[AxelSLK]

Oh you are absolutely right, it’s the main plate I replaced, sorry about that haha.

both the train wheel bridge and barrel bridge seems to be a bit different so my theory is that the screw hole on the new main plate is a tiny bit off but I couldn’t really see it on my own

[AndyGSi]

So is the new Main Plate marked 2542PC but just under the spring instead of next to it?

[AxelSLK]

52 minutes ago, AndyGSi said:

So is the new Main Plate marked 2542PC but just under the spring instead of next to it?

Jupp that’s correct. Sorry I realized my pic wasn’t too good 

[AndyGSi]

If the old and new are both marked 2542PC then there shouldn't be a problem.

[AxelSLK]

7 hours ago, AndyGSi said:

If the old and new are both marked 2542PC then there shouldn't be a problem.

Yeah that’s what I thought but I can’t seem to get that damn screw in haha.

oh well I might have to take it apart and see if I can find something that is not as it should. 
 

Do you have any idea why there are two different versions of the same movement though?

 

[AndyGSi]

57 minutes ago, AxelSLK said:

Yeah that’s what I thought but I can’t seem to get that damn screw in haha.

oh well I might have to take it apart and see if I can find something that is not as it should. 
 

Do you have any idea why there are two different versions of the same movement though?

 

It could be a date thing or one could be a Movado.

What are the Serial Numbers?

[AxelSLK]

10 minutes ago, AndyGSi said:

It could be a date thing or one could be a Movado.

What are the Serial Numbers?

I actually found the issue. Decided to take it apart just enough to see what was going on. Upon closer investigation it turns out there was a broken screw there.. A bit ironic since the reason I had to get a new main plate was due to a broken screw that I couldn’t get out

[GPrideaux]

It's not a left handed screw, is it? I broke a screw off in a Citizen movement by not realizing that the black screws were LH thread. Had to loosen it using alum before I could get the broken bit out.