Still plugging away at her Royal project, Naomi Watts was hard at work on the set of "Diana" in London, England today (August 23).

The "King Kong" cutie wore an all-black ensemble along with a pair of sunglasses as she filmed scenes at an outdoor location in the center of town.

And it sounds like Naomi will be getting plenty of bling to wear while she depicts the beloved late Princess of England.

The producers of "Diana" have announced that Swiss luxury brand Chopard will be the exclusive watch and jewelry partner for the entire production.

Enjoy the pictures of Naomi Watts on the set of 'Diana' in L ondon (August 23).