Montblanc’s 1858 Geosphere 0 Oxygen collection continues to explore the planet’s wildest landscapes with a series dedicated to alpinist and Montblanc Mark Maker Reinhold Messner and his achievement of climbing the seven highest mountain peaks on each of the seven continents. This first edition refers to the seventh peak – Mount Vinson. This Geosphere 0 Oxygen edition is limited to 986 pieces (as a nod to 1986 – the year when Messner made his ascent of Mount Vinson). It comes in a 43.5 mm titaniu...