The Montblanc 1858 Geosphere Limited Edition collection embodies the modern trend of returning to nature, dedicated to the world’s Seven Summit mountaineering challenge, the holy grail of mountaineering adventures. With a 42mm bronze case combined with beige and contrasting brown details, finding inspiration in the colours of deserts. The piece features a manufacture world-time complication developed by the Montblanc in Villeret: two domed globes, turning in opposite directions, that complete a full rotation in 24 hours surrounded by a scale with the 24 time zones, along with a day and night indication. This provides an instinctive way of appreciating the different time zones, aided by the luminescent continents for increased visibility and performance at night. The timepiece is completed with a brown Sfumato calf leather strap with beige stitching, and is limited to 1858 pieces.