Hello
I think your best option is to contact Ofri or look for old ads. This model is not easy to find bracelets for, when it came out, the stainless steel version was twice the price of a speedmaster more than 200 pounds in the early 70s. The fact that it is an integrated bracelet might make it more difficult to find. They also came on a leather strap but the lugs are 22mm, while the bracelet version is 12 mm. You could try contacting Omega to see it they can help but finding one us going to be a long journey. Here is a picture of mine
It was the first vintage omega I bought and I love it.
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