Breguet Reine de Naples Sonnerie 8978

The Reine de Naples Sonnerie 8978, reference 8978BB/58/974, has an oval 18K white gold case with a sapphire caseback. The bezel is set with 30 diamonds, the crown carries a single diamond, and the alligator strap buckle is set with 28 diamonds. The white natural mother-of-pearl dial features an off-centred chapter ring and an alarm on/off indicator set with one diamond. It is powered by the self-winding Breguet calibre 78SO, offering an hour strike complication and 70 hours of power reserve, and the piece is water-resistant to 3 bar (30 m).