Montblanc introduces two new Montblanc 1858 Annual Calendar Geosphere Limited Editions powered by a brand-new manually wound manufacture Minerva movement, featuring an annual calendar (hours, minutes, seconds, date, and month indications), a large date and a worldtimer function. The movement has a power reserve of approx. 65 hours and is composed of 336 parts, all of which are hand-decorated using traditional haute horlogerie techniques such as Côtes de Genève and a rarely seen snail finishing. Well-suited to complement this level of craftmanship, its workings can be admired through a sapphire crystal case back. Limited to 100 pieces.

Montblanc introduces two new Montblanc 1858 Annual Calendar Geosphere Limited Editions powered by a brand-new manually wound manufacture Minerva movement, featuring an annual calendar (hours, minutes, seconds, date, and month indications), a large date and a worldtimer function. The movement has a power reserve of approx. 65 hours and is composed of 336 parts, all of which are hand-decorated using traditional haute horlogerie techniques such as Côtes de Genève and a rarely seen snail finishing. Well-suited to complement this level of craftmanship, its workings can be admired through a sapphire crystal case back. Limited to 30 pieces.

The Montblanc 1858 Geosphere Collection has always found inspiration in nature and the world of mountaineering, especially the exploration of those undiscovered territories that fuel the imagination of intrepid adventurers. In 2025, Montblanc unveils the latest timepiece in the collection: the Montblanc 1858 Geosphere 0 Oxygen Mount Vinson Limited Edition, which pays homage to legendary mountaineer and Montblanc Brand Ambassador Reinhold Messner and his ascent of Mount Vinson in Antarctica, the final peak that completed his variation of the Seven Summits Challenge. Limited to 986 pieces.