PAM 372 SF missing crown gasket ?

[Netbis71]

I have noticed crowns on 372 p3000 clone and 417 I recently bought are missing sealing gaskets.

What type of gaskets are these, a flat piece or o-ring type ?

O-ring type could probably be sourced easier than a flat one, but it looks like it should be a flat one with opening in the center for stem. Can anyone confirm this please ??

I am sure my noob v4 I no longer own had the gasket in the crown, but I don't remember what type. These two new acquired pieces are missing it.


*(I know the pin is out too much on picture below, I punched it flat and applied loctite 425)


Thanks.

 

[Pratt]

It's a o ring hidden .

 

[Netbis71]

Found this picture of 6497 crowns on another thread.

Is there an info anywhere how to make these, or where to buy ?

Without these gaskets, watches could get soaked easily.

 

[Netbis71]

Can someone at least tell me if their 372sf has a gasket or not hidden inside the crown PLEASE ?

It could be that they dont install the gaskets purposely so the lever closes flush with cg.

Below my 372sf vs. gen picture of the web, see how tip is resting against the case with wrong angle and height and crown almost touching the case vs. on gen picture has gasket spacing.