Watch: How did Roman Abramovich's advisors help hide his wealth?

BBC Panorama, in collaboration with the Bureau of Investigative Journalism, has released a watch revealing how Russian billionaire Roman Abramovich hid his wealth with the help of Deloitte. The investigation uncovered how Abramovich's advisors used backdated paperwork and other methods to make his assets, including yachts and mansions, disappear from official accounts.