Audemars Piguet “Dual Time”

European Watch Clock and Jewellery Fair 1990 BF 212
Up to now, mechanical watches needed two distinct movements to show the hours and minutes in two different time zones. But Audemars Piguetts “Dual Time” model provides two time indications with one and the same movement. Its crown has two setting positions : one for the time on the main dial, the other controlling the hands of the secondary dial. Its selfwinding movement, 4.85 mm thin, features a 21K gold rotor and is equipped wit a power reserve indicator. (AUDEMARS PIGUET “Dual Time”)