I am trying to locate a compatible link to this bracelet and hence the question.
Good luck. That looks just like the bracelet I have also with nothing but the no.12 on it. I have been looking for a link on and off for about a year now.
WatchCo / abouttime-ch have NOS spare links for your 1175 bracelets, at least Marcus did have a few days ago. See:
http://www.ebay.co.uk/itm/5x-Omega-1970s-Speedmaster-Moon-145-022-Steel-Bracelet-Links-Type-2-Ref-1175-NOS-/351677339888?_trksid=p2047675.l2557&ssPageName=STRK:MEBIDX:IT&nma=true&si=P%2BOXVPoz2FHgWfYMd%2BAgbZg8aW0%3D&orig_cvip=true&rt=nc
And still available:
http://www.ebay.co.uk/itm/5-x-Rare-...966230?hash=item1eacca6d16:g:gjoAAOSwvgdW4OFJ
Clasp is from 1037 beads of rice. Strap appears to be a 1035 (not sure))
https://omegaforums.net/threads/advice-on-bracelet-requested.9695/
And still available:
http://www.ebay.co.uk/itm/5-x-Rare-...966230?hash=item1eacca6d16:g:gjoAAOSwvgdW4OFJ
Hmm the I guess mine isn't an 1175. Those links look to have a rounded top where as mine are flat.