Breguet Marine Tourbillon Equation Marchante 5887

The Breguet Marine Tourbillon Equation Marchante 5887, reference 5887BR/12/9WV, comes in an 18K rose gold case measuring 43.9 mm across. The case stands 11.8 mm thick, with lugs spaced 24.5 mm apart, and the dial sits under a sapphire crystal. Inside is the self-winding calibre 581DPE, offering 80 hours of power reserve. This grande complication combines a tourbillon with a perpetual calendar and a running equation of time, the solar minutes shown by a faceted golden sun hand against the guilloché silver dial. Small seconds and a date also feature, alongside luminous hands for low-light legibility. The sapphire caseback reveals the hand-engraved bridges beneath. Fitted to an alligator leather strap with a rose gold folding clasp, the piece carries a water resistance rating of 100 metres.