Part of Montblanc’s famous 1858 line, the 1858 Geosphere is an iconic timepiece that is distinctive thanks to its world-time complication and the two domed turning hemisphere globes. This year, Montblanc will be giving the 1858 Geosphere a fresh new look as it now comes in grade 5 titanium, along with a blue and icy white contrasting colour palette.
The Montblanc 1858 Geosphere Blue was created as a dedication to the holy grail of mountaineering; the world’s Seven Summit mountaineering challenge. This Seven Summit challenge is arguably the most difficult of mountaineering quests, where climbers must set out to ascend the highest mountains from each summit. These summits are what gave the inspiration for Montblanc’s 1858 Geospheres new look, with the colours of glaciers and ice that range from the purest white colour to the deepest blue. The Seven Summits and Mont Blanc is shown on the dial of the watch, where it is marked out on the two turning globes by blue dots
The Montblanc 1858 Geosphere Blue comes in a 42mm casing, which being made from grade 5-titanium makes it robust and durable thanks to the material’s resistance to superficial scratches. On the wrist, the watch won’t feel too heavy thanks to the material being lightweight. The grade 5-titanium has low thermal conductivity properties as well and has a dark finish, matching the overall dark tones through the watch. The bezel is fluted and bi-directional with a blue ceramic insert. Engraved onto the insert is four luminescent cardinal points.
The dial on this timepiece is an attention-grabbing smokey blue colour, providing a perfect backdrop for the main elements on the dial. The Montblanc 1858 Geosphere Blue has icy white hands and indexes, which also include the Arabic numerals. These designs are kept the same as the normal Geosphere in the 1858 collection. The two globes are done in the same icy white colour as well, which certainly makes them stand out against the blue dial. Another impressive feature which is retained from the original Geosphere model is that the indexes, hands, hemisphere globes and compass indications have all been coated with white SuperLumiNova material. This is undoubtedly something to gaze at when the lights are off, as the watch truly does come alive
Montblanc has used the Automatic movement Calibre MB 29.25 for the 1858 Geosphere Blue. The Calibre MB 29.25 allows for the second timezone, anti-clockwise rotation of the Northern hemisphere globe, clockwise rotation of the Southern hemisphere globe, date function along with the operation of the regular hour and minute hands. The Calibre MB 29.25 movement produces approximately 42 hours of power reserve. The case back of the watch is engraved with a unique drawing of the Mont Blanc mountain, two crossed ice pick-axes and also a compass. The words “SPIRIT OF MOUNTAIN EXPLORATION” is also inscribed into the case back.
To finish off the overall blue look to the timepiece, Mont Blanc has given the 1858 Geosphere Blue a blue Sfumato alligator strap with white stitching or stainless steel bracelet options. All elements of the watch come to give an icy cold feeling to the watch, while also retaining the modern look of the iconic 1858 Geosphere.
Montblanc 1858 Geosphere Reference 125565 
Montblanc 1858 Geosphere Reference 125567
