They are fairly regular on eBay, both new/nos and vintage. You can get them new/nos from teds vintage watches or watchco for around $300. I snagged one BIN for just less than half that last week
I picked up a GF one out of the UK about a month ago on eBay. They are out there, just do a search for Omega Bracelet.
Yeah I found that some sellers don't use the term "beads of rice" or "BOR" because they aren't WIS and don't know the bracelet by those terms. I found mine listed as "Vintage Omega Bracelet"
There are a few for sale on ebay at the moment, not sure if you knew that and were looking for something cheaper, http://www.ebay.co.uk/itm/OMEGA-GEN...571654321?pt=Wristwatches&hash=item519fb2ecb1Purchases made through these links may earn this site a commission from the eBay Partner Network Used ones do come up quite regularly and usually go for around £100 to £120 depending on condition. You can also buy them from Cousins in the UK for £195 + p&p http://www.cousinsuk.com/