Jaeger-LeCoultre Reverso One Duetto Moon

The Jaeger-LeCoultre Reverso One Duetto Moon, reference Q3358120, measures 20 x 40.1 mm in a steel case. It is set with 28 diamonds totalling 0.32 carats, and the case is rated to 30 metres of water resistance. The silvered front dial combines Arabic numerals, sunburst guilloché and Dauphine hands. Manual-winding calibre 842 runs at 3 Hz with a 38-hour power reserve, 129 components, 18 jewels and one barrel. The watch comes on a bracelet. Turning the case reveals a spangled midnight blue reverse dial with powdered silvered hour-markers, Dauphine hands and a moon phase display, while the hours and minutes agree with the front.