Breguet Marine Haute Joaillerie 9509 Poseidonia

Breguet's Marine Haute Joaillerie 9509 Poseidonia, reference 9509BB/5E/984, has an 18K white gold case measuring 35.8 mm across. The case stands 10.5 mm thick and carries lugs 18.5 mm wide. A self-winding calibre 591 C drives the watch, offering 38 hours of power reserve and visible through a sapphire caseback. The dial, in natural mother-of-pearl, is set with diamonds using an invisible-setting technique that follows the form of a Mediterranean seagrass. Central seconds sits alongside this arrangement, marked out by gold hands. An alligator leather strap closes with a folding clasp in white gold, itself also set with diamonds. Rated to 1.5 bar, the case tolerates only light splashes rather than submersion.