Carmina Shoemaker 80289 Tassel Loafer, Polo Suede, Uetam last. April
Check their site
Here you can see retailers, http://www.carminashoemaker.com/store-locator
Unfortunately not in London.
And it seems that http://www.macsamillion.co.uk/ is not selling it anymore?
Tobacco isn't that "orange" in real life. I wear mine with almost any shade of jeans/denim as well as with blue trousers. Great casual shoe imo