Breguet

The Breguet Marine Équation Marchante Reference 5887 is a striking departure from Breguet's classical design tradition, embracing a distinctly contemporary aesthetic while maintaining signature elements. The standout feature is its "running equation" display, an innovative approach to the equation of time complication. 

Due to the ever changing orientation of the Earth, tilting on its axis as it travels along an elliptical path around the sun, a day is rarely exactly 24 hours long. This deviation is almost never taken into account in regular civilian life, despite the fact that a day can be up to 15 minutes longer or shorter depending on the time of year. An Equation of Time indicator solves this issue, being able to display the real time difference between civilian and true solar time, and the present watch features a very unique execution of this rare and complex mechanism.

Unlike conventional displays, a secondary minute hand, adorned with a gilded Sun, indicates the difference between mean solar time and true solar time in real-time, offering enhanced legibility and intuition. The running equation relies on a cam shaped like the analemma curve, symbolizing the Sun's position relative to the Earth, and a sophisticated differential mechanism. Beyond this complication, the watch is labeled as a grande complication, featuring a one-minute tourbillon, perpetual calendar, and power reserve indicator. The movement, based on the Breguet Tourbillon Extra-Plat 5377, boasts a peripheral winding mechanism, providing a slim profile. 

The design, part of the Marine line, is robust and sporty, with maritime-themed details, paying homage to Breguet's historical role as the French navy's clockmaker. The 44 mm case, Super-Luminova accents, and engraved nautical motifs complete the modern and nautical aesthetic, making the Marine Équation Marchante 5887 a distinctive and technically advanced timepiece.