Breguet Classique Hora Mundi 5727

Breguet's Classique Hora Mundi 5727, reference 5727BB/12/9ZU, is a 43 mm white gold GMT watch. The case measures 12.1 mm thick and the silver dial sits under a sapphire crystal, with a sapphire caseback showing the movement. The dial itself is hand-guilloché, giving the surface a structured, engine-turned texture. Inside is the self-winding calibre 77F0, with 55 hours of power reserve. Beyond the second time zone function, the watch adds central seconds and a date display. It is fitted to an alligator leather strap with a white gold folding clasp. Water resistance is modest at 30 metres, in keeping with its dress-watch character.