Help Required

Can someone please help me identify my watch.

Help Required

Help Required 
that's a gorgeous example of the ref 4178 chronograph from the
10/15/2008 - 11:58
40s-50s especialy rare due to its two tone case.
Thank you and more questions!!
10/15/2008 - 19:23
To me it looks as though the strap lugs have been altered to take a different strap. Is this something that can be rectified? Also does anyone have any idea what the original strap would have been. Any idea of value? Many Thanks
if the lugs have been altered the best would be to send the watch
10/15/2008 - 19:38
to VC for refurbishment and they could tell you if lugs were altered and if it is possible to fix. Your watch looks as if it comes with a bracelet, some models were made as such while others came with a regular leather strap. As for value there can be huge differences in such pieces due to condition, original dial etc... You can have a look at the Sotheby's or Christie's database to see the result of past auctions but if you are not too far from London you should hask for an estimate (free of charge) from one of the numerous auction houses there or maybe show it to a vintage watch dealer.