Officers were called at 18:59hrs on Wednesday, 13 September to Frognal Way, NW3.

The victim, a man in his 50s, had been out for an evening with his wife when two men ran up to them from behind.

They were pulled to the floor in a struggle before the suspects ripped the man’s watch -a black and gold Rolex Yacht-Master with a black rubber strap – from his wrist and ran off in the direction of Frognal Road.

A member of the public who tried to help the couple then called police. The area was searched but the men were not found.

The victims were understandably shaken but thankfully did not suffer any serious physical injuries.

Sergeant Max Pennington, Camden Police, said: “The man and his wife were on their way home after enjoying a night out when this horrible incident happened.

“I’m keen to hear from anyone who can identify the two men. I also want to hear from any jewellers or pawnbrokers who might have been offered the watch for sale. ”

Police want to speak to the two men pictured and ask anyone who can identify them to call 101 or post @MetCC ref CAD 7126/13 Sept.

Alternatively to remain 100% anonymous contact the independent charity Crimestoppers on 0800 555 111.