I have a lead on one of the early flatlinks with the split clasp as illustrated here. The problem is that the 18mm endlinks aren’t numbered. Is it possible these are still original? I know some of the early BOR endlinks weren’t numbered so wondering if the same occurred for flatlinks? I also noticed that while this bracelet has 4 double stretch links, it only has 4 regular links on each side. I think that’s quite short. Thanks in advance!
Those ends don't look like Omega to me. As for the bracelet length...well I'd love to see a picture of the complete bracelet, I can imagine it to be only about 10 or 11cm long with all those missing links. IIRC it should have 8 or 9 non-stretch links per side.
Here’s the full bracelet. I think you’re right about 8 or so regular links on each side. I have very small wrists so I think it would be fine, though.