Ukranian-born actress Mila Kunis put critics to silence this year when she proved she was more than a pretty face in the highly-acclaimed Black Swan co-starring Natalie Portman.

After a stream of ensuing magazine covers and a probable explosion of her fan base, the elegant beauty is fronting a new ad campaign, for which she wears what appears to be a ladies designer watch.

As she posed for snaps for the Christian Dior photoshoot, Kunis, who used to date child actor Macaulay Culkin, matched the ladies designer watch with an elegant black gown and chain-link handbag.

According to Women’s Wear Daily, the 28-year-old was one of the most successful promotional faces of 2011, helping to drive up monthly sales at Cosmopolitan by almost ten per cent when she graced its cover last February.

The actress has climbed a steady ladder to stardom, and became a household name after starring alongside Ashton Kutcher in That 70s show, which first aired in 1998.

While she often provides the voice of Meg in animated comedy Family Guy, Kunis is due to appear in two movies out later this year, Tar and Ted, which are both in post-production stages.

05-01-12 2 Kunis fronts campaign in ladies watch