Dave Treadwell, 45, was woken up by his wife Kelly, 47, at around 3am on Tuesday, when their Ring Doorbell alert went off and she spotted someone lurking outside their home.
Good Samaritan Abdur Mijeed spotted the man trying to escape from the shop on on Oxford Street with the stolen items but ran at him and eventually tackled him to the ground and confronted him.
One of the yobs, Yakob Harket, 21, can be seen snatching a replica Patek Philippe Rose Gold watch from the female officer's wrist in Berkeley Square, Mayfair.
WARNING: GRAPHIC CONTENT Ebony Jones, 26, shattered a half-pint glass across the face of Megan Smith at a bar in Bargoed, near Caerphilly in south Wales.
My Laundress laundry in Hackney caught the shocking moment on its CCTV cameras, which was then shared online by cinematographer and camera-owner Chaimuki.