Breguet has unveiled a new version of the Marine Tourbillon Équation Marchante 5887 in 950 platinum to mark the 225th anniversary of the tourbillon.
The stunning dial depicts the night sky on June 26, 1801, when Abraham-Louis Breguet was granted a patent for the groundbreaking regulator.
The two-part construction comprises a sapphire dial with a gradient-blue Grand Feu enamel and a translucent underside.