This is an interesting point, and I noticed another point of difference between this watch and other 2577s I have seen by googling images: This lug does not have lug holes on the outside of the lugs (see attached picture). This makes me wonder - were there any vintage Omegas that looked like a 2577 but with thinner lugs and no external lug holes? It seems like every vintage omega I see in photos has holes on the outside of the lugs. Is it possible this case did not start out life housing an Omega movement?
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