The Master Geographic model from the new Master Black line features a second time-zone subdial with a day/night indicator. The names of 24 cities, one in each of the world’s 24 timezones, are inscribed on a disc that turns in an aperture at 6 o’clock. This steel model, with its black dial enhanced with white gold hour markers, comes on a matt nut-brown crocodile strap with a folding clasp. The automatic Jaeger-LeCoultre 929/3 calibre movement, bearing the inscription Master Control 1000 Hours, is visible through the sapphire case back. Waterresistant to 50 m.