Does This Omega Ref: PX6553 (Cal. 420) Have an Original Case?

[ButIDigress]

Hi! I have a quick question about a recent watch purchase. I believe all of the parts on this model are original, but I'm unsure about the case. The lug tips seem a bit too wide. Additionally, I don't think this reference was ever made in gold fill. It's challenging to find information on American-assembled Omegas, but I can only find examples in solid 14k gold.

Any help at all would be greatly appreciated!

Here is the gold-filled case model:

Here are some reference photos of the solid gold model:

Edited: Apr 3, 2024

 

[X350 XJR]

Clearly the watches pictured are two completely different references.

What makes you think they are related?

 

[Bumper]

you need the reference found on the inside of your case back for us to give any advice.

Yours looks similar to a PX 6270, but the lugs look different in your pic. Any better photos from the front?

 

[ButIDigress]

Bumper

you need the reference found on the inside of your case back for us to give any advice.

Yours looks similar to a PX 6270, but the lugs look different in your pic. Any better photos from the front?

Great eye! That's exactly what I think it is. Once received, I'll check and update the thread. Thanks!