Omega Speedmaster Strap on a Omega geneve watch?

Hi,
I was about to buy a nice looking Omega Geneve DayDate watch...
I talked to the seller and he sent me many pictures and once he got it back from his watchmaker i will be able to buy it.
Today he told me he got the watch back and everything, but he also told me he can only sell the watch without the strap because he realized it got a vintage Speedmaster Strap on it...
Is that realistic and is the strap really a speedmaster strap?
Is 500€ a realistic price for this watch (without Strap)?
Do you know where I can get a similar strap?

Thank you,
Paul Legler
(sorry for my bad english, im trying my best)

If the end links are correct, and they sure look like it, and the opening in the end link fits snugly to the bracelet, then you're good. It might even be correct!

The 1171, which it appears you have, was used on other watches as well.

Tom

Hi,
Is there a way to get the strap for under 150€ or is that impossible?...
Otherwise I need to buy a non Omega one ehich would make my heart bleed....