He afterwards considered the expedition a living hell, and tougher than any of his exploits in the mountains. While Messner is finest noted for carrying Rolex watches for many of his alpine expeditions (including an Oysterquartz to the 1980 solo summit), for your "Würth-Antarktis-Transversale" he chose an Omega Speedmaster Qualified. https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/