Nice watch. It does look to be gold cap. Do the back of the lugs appear to be stainless? On a gold-plated case, the back of the lugs are usually coated with gold. The bracelet number might be stamped on the clasp.
If you'd like to improve the fit of the end links to the case, you can use a pair of pliers to gently compress the end links. Just be sure to wrap everything with a cloth (or something else) for sufficient protection. I think the goal is usually to flatten-out the connection a bit. I've done this before on a C-case and it worked out well, but your mileage may vary.
Nice C-Case - flawless!
There's no bracelet number, it's 1125 but not really a 1125, there are changes, so Omega didn't stamp bracelets like these with numbers - it's a good / unique thing in my opinion, they are usually better for the watch they are on compared to their originals - original 1125 is screwed, these are pinned, they don't seize as easily - but you could search for 1125 links and they might still be compatible somewhat
I can sell you the identical bracelet if you're interested, has all the extra links on it, but it doesn't really make sense to sell the links individually, from that viewpoint it's hard to find them in the open market too
A leather strap is the best option. Enjoy it.
