Breguet Marine Tourbillon Equation Marchante 5887

The Breguet Marine Tourbillon Equation Marchante 5887 (reference 5887PT/YS/5WVSL) features a 43.9 mm case in 950 platinum with a sapphire caseback. The blue dial is executed in grand feu enamel as a miniature painting on a sapphire disc. The self-winding Breguet calibre 581DPE offers 80 hours of power reserve and drives a peripheral oscillating weight engraved with a depiction of the "Royal Louis" vessel. Complications include a running equation of time, perpetual calendar, tourbillon, and an off-centred power-reserve display, with the case rated to 100 metres of water resistance.