Capturing the spirit of mountain exploration, the sfumato green glacier pattern dial of this Montblanc 1858 Geosphere 0 Oxygen is inspired by the deep green colour of the emerald icebergs or “jade bergs”. The timepiece is housed in a 42 mm stainless steel case totally devoid of oxygen with a fluted bi-directional green anodized aluminium bezel with luminescent cardinal points. Powered by the MB 29.25 calibre with Montblanc’s Manufacture worldtime complication, this automatic movement includes rotating Northern and Southern Hemisphere globes, a 24-hour scale, Day & Night indications, dual time display, and a date. A 3D colored laser engraving of the Mont Blanc mountain on the case back as well as an interchangeable steel bracelet with a taper and fine adjustment system complete the timepiece.