In order to celebrate the wedding for British Princess Diana and Prince Charles, the United Arab Emirates Ya Maini chiefs specifically ordered a small and dedicate wrist watch Lada Kalla from the company of Vacheron Constantin. This watch is 30 kt with a total of 108 cylindrical refining precious diamonds. The watch worn by Princess Diana is more grace graceful, at the same time the watch also reflected its beatiful and graceful to the whole world.