Case back seamaster logo?

[Horologist]

Saw this case back on sale from a watchmakers deceased estate at a local auction and took a photo prior at pre auction inspections
It appeared new to me but I was more concerned of authenticity of seamaster logo! What are your thoughts?

 

[X350 XJR]

Without knowing the reference it's hard to draw any conclusions. How about the rest of the watch for context?

 

[Horologist]

Thanks for commenting! It was not the complete case, but just the case back that was in the lot! I was a 165.009! It was the hippocampus sea emblem that caught my eye as I have only seen ones on eroded case backs!

 

[Horologist]

I thought I had deleted it but after looking through photos, I found the inside of the case back! Hope this shows more information, but as I said it was the only case back that was there ! Nothing else! That is all the information I have! Thanks!

 

[theluckyluke]

Google the reference above adding site: omegaforum.net

This will likely bring up plenty of threads for comparison.