Need Help with my Seamaster Cosmic 2000 ref. 166.131

[lenndon]

Hello everyone,
I got an Omega Seamaster Cosmic 2000 with the case no. 166.131 on my hands, which is the larger case model of the Cosmic 2000 from the 70s if I'm correct. The movement is running well, all functions work and I managed to take it apart.

Now I started searching for the Gaskets that obviously need to be replaced and got a bit confused.
I need the glass gasket, the case back gasket, and the O-Ring that sits between outer and inner case, but the last one shouldn't be a big problem. I really struggle with the first two tho.
I found gaskets for the other cosmic 2000 models, but I'm afraid they might be smaller than the ones I need.
Does anyone know if I can use:
- Crystal seal 098EW0006
- Back case seal 198ZT0008
for my model?

Thanks a lot

 

[lenndon]

@Archer Any chance you have information on that? Sorry to tag you like that, just saw that you already answered on the cosmic 2000 gasket topic for an other case model in the past and I'm really desperate.

 

[Archer]

088NS5083 | SEAL O-RING D31 D32.6 Ø0.8

098EW0006 | L CRYSTAL GASKETS Ø32 T1.1 H3.2

198ZT0008 | BACK CASE GASKET Ø31 T1.1 H2.2

 

[lenndon]

Oh cool, so they are actually the same as in the slightly smaller models. On cousins it doesn't show that. Helped me a lot. Thank you very much!

198ZT0008 seems to be difficult to find for a hobby watchmaker tho. Ofrei doesn't have it anymore and on cousins it is restricted. Maybe I'll be able to 3D print something that works. If I do I will post it here.

Edited: Jun 6, 2023