A tourist has revealed how he was stabbed in the elbow to paralyse his arm while criminals wrenched a £115,000 Breguet Tourbillon from his wrist in a 'shocking' and violent daylight robbery in Mayfair.

Bo Khan, a 55-year-old property developer from Manchester, was knifed as three men took the timepiece in London's upmarket Berkeley Square - where properties sell for up to £55 million - in front of his horrified wife Karen, 56, on the final day of their romantic break to the capital on June 9 last year.

Mr Khan says police have told him gangs of up to three men have been prowling Mayfair looking for victims - stabbing downwards into a victim's elbow with a razor-sharp knife to cut the tendons so they are paralysed when they grab valuable timepieces from wrists.

The Mancunian property developer, who has shared images of his own horrific injuries, revealed his wife first gave chase before he flagged down a passing Audi whose driver let him jump in and drove after the gang but they vanished down a side street.

His Breguet Tourbillon 'Extra Plat' watch has not been recovered - but he revealed that the gang dropped another timepiece that he grabbed from the pavement and handed to police for analysis.

Mancunian Bo Khan pictured wearing his £115,000 watch that was snatched in the robbery

Mr Khan has revealed that he, like other victims, was stabbed in the elbow in an attempt to cut his tendons so he couldn't fight back when they snatch the watch

Mr Khan with his wife Karen shortly before he was robbed in a violent attack caught on CCTV

The gang of three men flee after slashing a tourist's arm with one of the robbers (right) clutching the £115,000 Breguet Tourbillon watch they had stolen

Describing the incident Mr Khan told MailOnline he and his wife were walking from Hilton on Park Lane and were crossing the road in Mayfair when the culprits attacked.

He said: 'It was done with military precision. They ran from behind, one grabbed my arm, stabbed me in the elbow and dragged me to the ground by the wrist and another grabbed my watch. My wife ran after them but she rushed back to check on me.

‘They slashed my arm to cut tendons and paralyse me. They cut down very deep but didn’t manage it [cut the tendons] so I grappled with them. They obviously thought the watch was worth stealing – but whether they knew its true value, I doubt it'.

‘I tried to jump in a taxi but the driver locked the doors and wouldn’t let me in. A Black Audi stopped and let me in we gave chase and got to them. I jumped out and ran but they were younger and me got away.

‘Police have told me that there are two groups who do that in Mayfair, often at night.'

Breguet Tourbillon 'Extra Plat': The £115,000 self-winding timepiece from luxury 1775 Paris watchmaker The Breguet Tourbillon 'Extra Plat' The Breguet Tourbillon 'Extra Plat' comes with an 18-carat rose gold case, a finely-fluted caseband and a sapphire crystal caseback. The case measures 41mm wide and 7.45mm thick, with a water resistance of 30 meters. The movement is self-winding, with a power reserve of 80 hours. It boasts 334 components, 33 jewels, a flat, silicon balance spring and platinum oscillating weight. It features inverted lateral lever escapement with silicon horns and runs at a frequency of 4 Hz. Advertisement

Police are looking for these three men who carried out the violent robbery in Mayfair last June

He continued: ‘It has made me feel anxious and my friends have said I'm quite a different person – but I have recovered from my injuries’.

Extraordinary CCTV of the incident shows the gang running from the scene in London's upmarket Berkeley Square moments after grabbing the watch with Mr Khan's wife giving chase.

Mr Khan then dives on the floor to grab some valuables the gang failed to snatch as two witnesses eating fats food watch in astonishment as the robbers sprint away.

The area is a hotspot for Britain's financial elite, home to the exclusive Annabel's private members' club where The Queen reportedly attended and drank a gin martini in 2003.

Winston Churchill is just one British Prime Minister to have called Berkeley Square home - others including George Canning, William Pitt the Younger and John Stuart, 3rd Earl of Bute - along with notable figures such as founder of Selfriges Harry Gordon Selfridge and co-founder of Rolls-Royce Charles Rolls.

The robbery suspects, men in their 30s, of Mediterranean appearance and medium build, ran off in the direction of Park Lane with the rare Breguet Tourbillon watch shown clearly in an attacker's hand.

Detectives are hunting for them and have released images of the robbers today.

DC Eve Kelly said: 'This violent robbery was committed in broad daylight, and it appears that the victim was specifically targeted for his watch.

'He and his wife were left shaken, and have since received counselling to help deal with the impact of this robbery.'

Mr Khan's story is one of a number of knife-point watch robberies that have plagued the capital in recent years.

Police in Knightsbridge, West London, after Mohammed Abdullah Al Araimi was stabbed to death following a struggle with masked muggers

Robberst knifed to death Mohammed Abdullah Al Araimi (left), 20, a King's College politics and economics student, on December 5, 2019, to steal his watch in Knightsbridge and (right) Danny Pearce was stabbed to death by two moped muggers for his £7,000 Rolex in Greenwich

Rrobbers were reported to have stolen a Richard Mille RM 69 Erotic Tourbillon luxury watch worth £700,000 - one of 30 ever made

Omani student Mohammed Abdullah Al Araimi, 20, was walking home from a restaurant in Knightsbridge, London, when he was jumped by a gang of masked muggers demanding his luxury watch, believed to be a Rolex last year.

The Kings College politics and economics student, from Princes Gate Apartments, Knightsbridge, was believed to have lived in the UK for the last three years.

He was found unconscious with a blade wound to the back and was pronounced dead at the scene on Brompton Road at 12.39am on Friday 6 December.

Earlier that year robbers were reported to have stolen a Richard Mille RM 69 Erotic Tourbillon luxury watch worth £700,000 - one of 30 ever made.

And in 2017 Danny Pearce was brutally stabbed to death by two moped robbers for his £7,000 Rolex watch as he left a jazz club in Greenwich.

Jordan Bailey-Mascoll, one of two men who carried out the killing, was jailed for life with a 35-year minimum term in 2018.

The second attacker, identified only as 'Ghost', has still not been identified.

If you know who the men involved in the Mayfair incident are, call officers on 020 7321 7581 or 101. Alternatively, call on 0800 555 111 if you would prefer not to leave your name.