Crazy found, thanks to Nico!

On this pic we can see the British Prime Minister Edward Heath (1916 – 2005, centre) and the crew of his racing yacht Morning Cloud, circa August 1971.
(Photo by Terence Spencer/Popperfoto via Getty Images)The Prime Minister seems wearing a Aquastar Heuer Regate with Felsa 4000n as we know on the Intrepid crew and the guy we need to get known in the front on the right is wearing a Heuer Skipper 7764! 
 

Morning Cloud was the name of five different yachts from Edward Heath, that he owned between 1969 and 1983. You can read all about the yachts here.

This yacht in 1971 was designed by Sparkman and Stephens, length 42 feet (13 m), hull and deck material wood mahagony, constructed by Lallows (UK). Heath used the boat in the Admiral’s Cup of that year as part of the winning British team. At least two copies of the boat were built under licence from him. (credit: wikipedia)

British Prime Minister Edward Heath (1916 – 2005, centre) and the crew of his racing yacht Morning Cloud, circa August 1971. (Photo by Terence Spencer/Popperfoto via Getty Images)

And another pic he is wearing the Aquastar Regate.

Cowes, Isle of Wight, 2nd August 1971, British Prime Minister Edward Heath is pictured aboard his yacht ,Morning Cloud (Photo by Popperfoto via Getty Images/Getty Images)