Aishwarya Rai Bachchan may not have signed a film yet but the actress is keeping herself very busy.From endorsing Kalyan jewellers, to becoming the international Goodwill Ambassador at the UN headqaurters to getting a French honour on her birthday, shes been on her toes.The latest is Ashs new ad for Longines (above), recently tweeted by the watch manufacturing company.Heres to seeing much more of her.