Reputable London dealers to sell my Rolex at.

[seadog]

Hi, a bit of a strange question but here goes.

I have an opportunity to get a DSSD at a very good price, unfortunately I am a bit short of funds. I am looking at selling my Milgauss GV to seal the deal.
Any places in London to sell it at a fair price ? As it's a spur of the moment sell, so no box or papers.

Looked at Goldsmiths, but they appear a bit short of my expectations price wise. One Knightsbridge watch trader looked ok and they replied to my email with a fair offer, any other places I should try as well or avoid ? I tried internet searching but there appear to be dozens of second hand watch traders in London and I don't know which are ok or who I should avoid at all costs.

If this breaks Forum rules / etiquette please PM me any details rather than post a reply.

Best,
Peter