I found your thrad in a search for F/Lt. Watt from 65. sqn. Thing is a friend and I are trying to find him and his plane. We live in Norway and did a search in Hyllestad/Sogn last week. We got a good few clues and a cpl of eyewitnesses that can confirm the battle done over 'Slettheiene' and 'Skor'.
The riddle is we can't find anything on F/Lt. Watt. We believe his plane was last seen burning/leaking oil over 'Slettheiene' in a steep dive. He had a plane on his six (propably Walter Opitz in a FW190), but he was never seen (as far as we know by now) later that day.
Do you have any more details on Watt himself?
Any intel will be much appriceated!