Hi SingaporeMarc, many thanks for your reply!
That is exactly the bracelet with my WW.TC and as you rightly say, the links (both large and small) taper to 18mm. My bracelet is also polished on the outer links like the one in your pic, but it doesn’t matter if I can find one that’s brushed so long as it fits. I can polish it myself!
Pic attached matches your pic. If you can help or know someone that can, I’ll be eternally grateful.