I am writing this guide following ebays introduction of international site visibility, which basically means search results now display items from all over the world.
Now when you search for Jacob & Co Watches, at the bottom of the page will be watches listed in the USA.
With the Dollar trading at nearly half the value of the pound, there has never been a better time to buy A Jacob & Co watch from the states at half the cost.
The only problem is, Goods purchased and imported into the EU with a value over £36 are subject to Customs charges, this is the buyers responsibility and international sellers will probably not mention this in there listings. You may end up having to pay Import duty, VAT plus Parcel Force handling fees.
On the whole, it would probably still be cheaper buying from the US and paying the extra charges than purchasing from UK Jewelers, just be aware the price you buy the watch for is not nessarily the final cost to you!
If you have found this guide useful please vote for it, it will not take a minute. Also please feel free to visit my Ebay shop, i sell mens & Ladies Diamond and bling watches to suit all budgets! http://stores.ebay.co.uk/Diamond-Bling-watches