This piece comes in sizable white diamonds, yellow diamonds, sapphires, and emeralds. Business is clearly booming for the duo, and they’re passing on the goods to fans and collectors alike.

Franck Muller has shown its forte in unique designs with the inaugural Cintrée Curvex boasting a three-dimensional tonneau-curved body.Over the years, an evolution has given the lug-less Vanguard, the ...