Well this is strange. I have got a 7S26-0020 diver with longer case back threads than another I have checked. It seems double the length and so will not close properly!! The dial holding spacer looks to be the correct the 4408 171 (3.60mm approx) but I got the feeling it needs the narrower 4408 170 to have any chance of closing.
Anyone come across this before or got a narrow dial holding spacer 4408 170.
Anyone come across this before or got a narrow dial holding spacer 4408 170.
