Audemars Piguet's Royal Oak Concept Split-Second Chronograph GMT Large Date is fitted to only four Rolls-Royces in the world.

La Rose Noire is a special Rolls-Royce, with only four units produced in the world. It features Audemars Piguet's Royal Oak Concept Split-Second Chronograph GMT Large Date as its onboard watch, which matches the deep reddish body color. Only those who own a La Rose Noire can wear this special watch.

Audemars Piguet's special Royal Oak was chosen as the onboard watch for "La Rose Noire."

　As we all know, automobiles and timekeeping have been closely linked ever since the advent of the automobile. From calculating distance and speed with a tachymeter to always telling the driver the correct time, watches have always played a vital role in the automotive industry.

　The Rolls-Royce La Rose Noire has been a headline-grabbing car. Of course, its €25 million price tag, its rarity (only four examples in existence), and its exquisite finish have all garnered a lot of attention, but that's just on the surface. This car is truly top-notch. And the onboard watch needed to be a brand worthy of its ultimate luxury. And so, Audemars Piguet was chosen.

　Before we delve into this in-car clock, let's explain that the concept of a mechanical clock mounted on the dashboard of a luxury car is not new. In the 1930s, Bugatti commissioned Breguet to create an onboard chronograph. Much later, Bell & Ross came up with a removable in-car clock for a Peugeot concept car.

　More recently, Alpine's partner Tissot has introduced an affordable timepiece integrated into the dashboard of a small French racing car, while prestigious brand Bovet has developed a luxury in-car clock in Switzerland for the Rolls-Royce "Boat Tale."

　This time, the British brand Rolls-Royce has teamed up with Audemars Piguet, a manufacture based in Le Brassus, Switzerland.

　The dashboard of the La Rose Noire, of which only four will be produced in the world, will house the Royal Oak Concept Split Second Chronograph GMT Large Date.

　The two-seater cabriolet, La Rose Noire, is said to have been commissioned by a wealthy French couple who "love art and fashion," rumor has it that it is Mr. and Mrs. Arnault, the chairmen of LVMH.

The Royal Oak Concept Split-Seconds Chronograph GMT Large Date sits perfectly on the dashboard of the La Rose Noire, but can also be removed for wrist wear. When the watch is not on the dashboard, a black rose engraving appears in its place.

　The car's dark red exterior color is named "True Love," and the same color is used for the car clock. This color changes color depending on the angle you look at it from. When the clock is stored in the car's dashboard, the two blend perfectly.

　The Royal Oak Concept Split Seconds Chronograph GMT Large Date features a leather and wood interior with space for a champagne bottle and two flutes, and is powered by a 6.6-liter V12 twin-turbo engine producing 600 bhp.