Meet Bill And MischaMeet Bill And MischaBeauty meets brains as actress Mischa Barton joins Microsoft chairman Bill Gates to launch a multi-coloured watch.   

One to one meetings with the duo are being offered by Swatch as the Swiss watch firm unveils its latest accessory - appropriately named the Paparazzi.

Eighteen-year-old Mischa Barton is best known as the lead in The OC, which has taken the world of television by storm.   

Her most recent film role is in thriller Octane and she has also featured in The Sixth Sense, alongside Bruce Willis, and in Notting Hill with Julia Roberts and Hugh Grant.   

Bill Gates is the billionaire chairman of the Microsoft Corporation, which he set up with his childhood friend Paul Allen in 1975.   

Olympic champion Carl Lewis, billed as the greatest track and field athlete of all time, also joined the duo to launch the watch. 

Swatch is offering a chance to join Mischa Barton on the set of The OC, tour the Consumer Electronics Show with Bill Gates or train with Carl Lewis in a personal session.