Breguet Marine 9517

Breguet Marine 9517 (9517ST/E2/984) is a steel-cased watch measuring 33.8 mm across, sized for slender wrists. The case stands 9.9 mm thick, with lugs spaced 18.5 mm apart, and carries a sapphire crystal over a blue lacquered dial. Inside is the self-winding calibre 591 A, offering 38 hours of power reserve and visible through a sapphire caseback. The dial shows a central seconds display and a date aperture at 3 o'clock, with hands and indices treated for night legibility. An alligator leather strap closes with a steel three-blade deployant clasp. Breguet rates the case to 50 metres, ample for everyday wear away from the water.