Breguet Marine 9517

Breguet Marine 9517, reference 9517ST/5W/984, has a steel case measuring 33.8 mm in diameter, sized for slender wrists. The case is 9.9 mm thick, with sapphire crystal front and back. Inside is the self-winding calibre 591 A, offering 38 hours of power reserve. The mother-of-pearl dial has a guilloché finish and Roman numerals styled after nautical flags, with luminous hands and indices for night reading. Central seconds and a date aperture at 3 o'clock round out the display. An alligator leather strap closes with a steel folding clasp. Breguet rates the case to 50 metres of water resistance.