Two different time zones, malachite dial, 2 movements, white gold 25 x 35 mm case. Circa 1971. Credit picture: Sothebys? An original way to display different time zones! Best, Nicolas ...
Collecting Patek Philippe Wristwatches, Vol. II (by Osvaldo Patrizzi) PAGE 273 - ref. 4404/4 18k white gold Patek Philippe the Authorized Biography (by Nicholas Foulkes) PAGE 260 - ref. 4404 G (1978)