Nevertheless Steger Had utilized Rolex watches for past expeditions (he was just the fourth person in background to reach both Poles), for that 1989 expedition, he used A unusual watch built especially for him through the French manufacturer, Yema. The watch, called the Bipole Duopoly had a 48mm titanium scenario, https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/