I don’t know.
The Omega Forums have a vintage section; they may be able to advise.
For watch enthusiasts to discuss everything related to watches and horology.
I don’t know.
The Omega Forums have a vintage section; they may be able to advise.
That's a good lead, thank you.
I'd just look into getting a third party modern bracelet that matches the style as best as possible. Somewhere like Strap Code or Uncle Seiko might have what you'd want.