On the higher end of things, this is not a known watchmaker, and I am assuming the Breitling crown is a replacement (though stranger things have happened), but it's very rare to see a black-dialed val. 92 chronograph in this condition for under £1k these days. You gotta love that red sweep second as well.
Gents Ascot Olimico Chronograph Watch (506)
https://ebay.us/ldbs6ZClick to expand...