Even Though Steger had used Rolex watches for past expeditions (he was just the fourth person in history to achieve equally Poles), for that 1989 expedition, he used A unusual watch created specifically for him via the French brand, Yema. The watch, called the Bipole Duopoly had a 48mm titanium https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/