Help me with a watch?

So on my next step into manhood I decided it's time to buy a nice watch.
Upon going onto watchshop UK, a highly recommended site, I stumbled upon this watch.

<a href="http://www.watchshop.com/mens-emporio-armani-renato-chronograph-watch-ar2434-p99933242.html">Clicky</a>

But ongoing research on the net I've found it from other sources being half the price, however, I don't want a fake.
I've found it on Amazon, with mixed reviews of fakes and genuine versions...
<a href="http://www.amazon.co.uk/Emporio-Armani-Chronograph-Stainless-Bracelet/dp/B002LZUAFM/ref=cm_cr_pr_product_top">Clicky</a>

But the one that's really caught my eye, is surprisingly, eBay.

Several premium sellers, especially this one here which is shoved in your face as soon as you search for the item.
<a href="
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=251209126893">Clicky</a>

The company insists that it's genuine but can you trust them?

(Source: Click "Other"

<a href="http://contact.ebay.co.uk/ws/eBayISAPI.dll?FindAnswers&redirect=0&iid=251209126893&requested=empire_watches.ltd">Clicky</a>

)

I just can't be bothered dealing with the hassle of having to get it looked at by a jewellers and or having to return the item. Plus, if I can save £100 on the exact same product from shopping around, it's silly not to! It's like half price!

If any of you have a minute to share an interest and help me out, I'd really appreciate it! Then I'll let you get back to Steam ;)