Certainly a nice bike. I can see the forks are Vitus but what is the frame tubing, also Vitus and what type? Look for a sticker on the seat tube. We really a pic of the complete bike to assess it properly (from thr drive side)
Where "Vitus" = Columbus, probably SLX
It's certainly a quality bike from a very well respected Italian workshop. From the photo you can see there's Cinelli and Campagnolo componentry too, so those are good signs.
The frame alone could be worth £500 - though the paint does look a little more dulled than some of the recently eBayed ones - the brightness of any chromework would also be a factor. Definitely more photos required - either for here or
eBay, where it might fetch a grand at the moment.