There are repro bracelets on eBay from time to time but i have no knowledge of the quality. OE bracelets are expensive, i think the cheapest permutaion of all steel is £1500
Steel and Ti mixed, hit £1700+ These are prices for the 'C' bracelet. The newer straight link style is cheaper but nowhere near as nice imo. I also doubt very much you'd get a discount in the UK, but that could be different where you are. There's one for sale now over on 'dot com' if you want the new style, $1500 i think.
Be aware that if you buy an oem bracelet without special third party made adaptors, a bracelet can't be fitted to a non bracelet model if it's more than a couple of years old. I don't know when the manufacturing changes were but i'd wager someone will and post accordingly.