Breguet Marine Tourbillon Equation Marchante Grande Complication

wristwatch with tourbillon, perpetual calendar, running time equation and power reserve, ref. 5887BR, c. 2022

Case: rose gold 750, numbered 2683CA, screw-down glass bottom, covered push-piece, diameter c. 45 mm
Movement: self-winding, decorated lever movement, numbered 31375, calibre 581DPE, one minute tourbillon carriage, 57 jewels
Dial: guilloché, Roman numerals, date, weekday, month, leap year, sun, small second, indication for power reserve and equation of time month display
Accessories: covered folding buckle rose gold 750, warranty booklet and instruction manual, documentation, box

The Breguet Marine Equation Marchante, ref. 5887 combines a distinctly modern aesthetic with the brand's characteristic elements. The most striking feature of this watch is the wandering equation of time — an innovative approach that allows simultaneous reading of mean solar time and true solar time. Due to the constantly changing orientation of the Earth relative to the Sun, a day is rarely exactly 24 hours long. This deviation is hardly taken into account in civil life. The wandering equation of time solves this problem by displaying the actual time difference between civil time and true solar time.

The present watch offers a very special version of this rare and complex mechanism. This time is displayed by a secondary minute hand. The ongoing correction is performed by a cam in the form of an analemma curve and a sophisticated differential mechanism. The design is robust and sporty, with maritime details. The peripheral winding mechanism allows for a slim profile and makes the Marine Equation Marchante ref. 5887 a unique, technically advanced watch.