Breguet Reine de Naples 9915

Breguet's Reine de Naples 9915 (ref. 9915BB/58/964D0) has an oval white gold case measuring 36.5 mm in height. The case stands 10.4 mm thick, with lugs set 16 mm apart, and a sapphire crystal covers the dial. The white mother-of-pearl dial carries rubies and sapphires among its decoration, and the watch is set with diamonds, with a cabochon-cut ruby on the case. A self-winding movement, calibre 537/3, drives the watch and gives 45 hours of power reserve, with central seconds shown on the dial. The sapphire caseback allows a view of the movement's finishing. The alligator leather strap closes with a white gold folding clasp, also set with diamonds. Breguet limited this piece to 28 examples, and the case is rated to 30 metres of water resistance.