Breguet Reine de Naples 8939

Breguet's Reine de Naples 8939BB/6D/J61 has an oval case in white gold measuring 38.5 mm in height. The case measures 10 mm thick, with lugs set 16 mm apart. A sapphire crystal covers the mother-of-pearl dial, which is hand-guilloché and set with diamonds, its hours plate off-centred and engraved on a rose engine. Inside is the self-winding calibre 537/3, which runs at 45 hours of power reserve. Central seconds are shown, and the sapphire caseback lets the movement's finishing show through. A folding clasp in white gold closes the white gold bracelet. Breguet rates the case to a depth of 15 metres, modest by sport-watch standards but standard for a dress piece of this kind.