NEW YORK, March 21 — Graff Diamonds is setting records at Baselworld in Switzerland, where it has unveiled the most expensive transformable watch ever. With a price US$40 million dollars, you'd want it to be versatile. Graff Diamonds CEO Francois Graff gives Bloomberg a sneak peak in London. — Bloomberg

Graff Diamonds has created the most expensive transformable watch in the world with a centrepiece that can be replace with a nearly 40-carat flawless diamond. — Bloomberg pic