A rare watch, worth £100,000, has been stolen from the very wrist of its owner on a street in Mayfair.
The victim was approached by a group of men on Berkeley Street in the early hours of Saturday morning.
One of them shook his hand, and in doing so, slipped the watch off his wrist.
A 'Breguet Tourbillon', the watch is one of only 60 in existence.
The men are described as Eastern European and aged in their mid-twenties.