Looking for a large 12 ligne quartz movement

[AlexeiJ1]

Hi everyone,
Recently I fixed my 1337 cal Seamaster with gold rotating bezel. I had to use a 1332 donor off the web which set me back $270.

The donor has a perfect coil and movement but a buggered circuit board (swapped  from my diver).

Is there a quartz movement in size 12 ligne???? I can't see one in a parts house.

The Size 11.5 ETA 255.111 is a tad too small.

Cheers
Alexei

[watchweasol]

Hi    Have a look on this PDF it lists quartz movements   a quick look   they do 11 1/2 ligne,  worth a few mins perusal

Quartz Movement Book Feb 2014 (1).pdf

[AndyHull]

1 hour ago, AlexeiJ1 said:

The donor has a perfect coil and movement but a buggered circuit board (swapped  from my diver).

Can we see some close up pics of both sides of  the "buggered" circuit board, it may be possible to repair, depending on the nature of the "buggeration".

[yankeedog]

movement holder.

[AlexeiJ1]

On 2/24/2019 at 11:39 PM, AndyHull said:

Can we see some close up pics of both sides of  the "buggered" circuit board, it may be possible to repair, depending on the nature of the "buggeration".

Hi Andy,
The 8 pin IC must be heat damaged.
Ive tested the integrity of all the traces, the diode is fine, the variable trimmer is fine. Quartz has been swapped out just to be sure.
Unless I can find an 8 pin IC, im outa luck!

[AndyHull]

What are the markings on the 8 pin chip? Do you have a picture?

 

 

 

[AndyHull]

I lot of these quartz movements use similar chips, so it may be possible to extract one from a different movement.