Discover the Maison's extraordinary 2025 novelties. Drawing inspiration from dramatic arctic landscapes, the expertly-crafted Iced Sea Automatic Date operates with an automatic movement and unidirectional rotating bezel, encased in a stainless steel surround, redesigned this year in a new 38mm diameter.
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Icons from the 1858 collection are also refreshed with cutting-edge design details and sophisticated movements – ready to accompany your next adventure.
Antarctica, a lack of oxygen and a legendary mountaineer
Montblanc is able to combine all of this in the Zero Oxygen watches, gaining their name from the fact that they manage without any oxygen inside. This not only prevents the watch from fogging up when exposed to extreme temperature fluctuations at high altitudes, but also prevents the metal from oxidising. This significantly extends the service life of all components. Montblanc certifies the absence of any oxygen in the case by means of an accompanying certificate.
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However, this technology not only has practical and quality-enhancing benefits. It also serves authentic storytelling at its best. No oxygen, the highest peaks in the world – mountaineering legend Reinhold Messner can’t be far away.
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He is considered to be the first person to have climbed all 14 of the world’s eight-thousanders and to have done so without the aid of oxygen. But that’s not all. The South Tyrolean and Montblanc brand ambassador also climbed the so-called Seven Summits, the highest mountains on the continents of Asia, Africa, North America, South America, Antarctica, Europe and Australia. In 1986, he completed his ascent of Mount Vinson, 1,000 kilometres north of the South Pole in the so-called eternal ice. To date, only around 500 people have mastered these seven challenges. The latest addition to the 1858 Geosphere collection, which has always been inspired by the world of mountain sports, is dedicated to this impressive achievement.
1858 Geosphere 0 Oxygen Mount Vinson Limited Edition
The model, which is limited to 986 pieces – a reference to the year Messner conquered Mount Vinson – is equipped with a 43 mm titanium case that is water-resistant to ten bar and an innovative composite material for the middle section. The latter consists of quartz fibres, aluminised basalt fibres, calcium carbonate and light blue resin.
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It is reminiscent of the colours and patterns of Antarctic glacier ice and forms the background for the silhouette of Mount Vision on the left side of the case, so that it is only visible to the wearer. During the day it glows light grey, at night it shines in ice blue.
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To ensure that this frosty beauty always conveys precision, the 1858 Geosphere 0 Oxygen Mount Vinson Limited Edition was equipped with the MB 29.25 calibre with a 42-hour power reserve. It is based on a Sellita automatic movement and, like all “Geosphere” versions, features the manufacture world time complication from the Minerva manufactory.
Montblanc combines practical functionality with a highly aesthetic display on the dial. Two domed hemispheres – the Northern Hemisphere in the upper half of the dial and the Southern Hemisphere in the lower half – perform a complete rotation within 24 hours – just like the earth itself.
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Equipped with a blue-green Greenwich meridian and surrounded by a fixed scale with 24 time zones with day/night display, the different time zones can be read very intuitively with the aid of the minute hand. Even in poor lighting conditions. This is because the luminous coating on the continents provides time orientation. At the 9 o’clock position, there is also a simply designed second time zone display. Opposite it is the date display, which is linked to the local time.
Eight mysterious points
Those with a love for detail will appreciate the small dots on the Earth’s hemispheres. They mark the Seven Summits conquered by Reinhold Messner and, of course, Mont Blanc.
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The watchmaker has left no space unused in its visual representation of the beauty of the mountains. A glance at the titanium caseback, for example, reveals Mount Vinson in all its glory. The engraving technique used, which includes laser-generated oxidation, makes it appear three-dimensional like a photograph.
The 1858 Geosphere 0 Oxygen Mount Vinson Limited Edition is securely positioned on the wrist with an interchangeable blue-green rubber strap. This makes it the first watch in the 1858 collection to be fitted with this strap material.
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And even here, Montblanc has transformed mountaineering into design. The outer structure is modelled on a climbing rope. The inside is also designed like the edges of a rock for greater comfort and breathability. Like the other straps of the watches in the 1858 Geosphere 0 Oxygen line, it has a conical shape, is easily interchangeable and is equipped with a fine adjustment system. The 1858 Geosphere 0 Oxygen Mount Vinson costs €9,200.
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TECHNICAL SPECIFICATIONS
Model: Montblanc 1858 GEOSPHERE 0 Oxygen Mount Vinson LE 986 Piece
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Movement
Montblanc Manufacture Calibre MB 29.25 (with world time complications)
Movement type: self-winding mechanical movement with universal time display
Number of rubies: 26
Power reserve: about 42 hours
Balance wheel: flat ring
Frequency: 28,800 times/hour (4 Hz)
Hairspring: flat
Display: Worldtime with turning northern and southern hemisphere globes, 24-
hour scale and Day & Night indication, Dual time indication; Date by disc
Case
CARBO2 fibre with the colours and patterns of Antarctic glacier ice, white outline of
Mount Vinson on the left side with blue emission
Bezel Bi-directional titanium blue ceramic bezel, knurled finishing, blue emission of Cardinal Points in Super-LumiNova®1
Crystal: Scratch-resistant, domed sapphire crystal with anti-reflective coating
Special joint that allow 0 oxygen inside the watchcase
Back: Titanium caseback with a 3D laser colour engraving of Mount Vinson
Dimensions Diameter : 43.50 mm in diameter; 13.00 mm in thickness
Water resistance: about 100 meters (10 bar)
Crown: Titanium crown with Montblanc emblem in relief
Dial
Antarctic glacier ice and white sfumato glacier pattern dial with white luminescent black
rhodium-coated Arabic numerals and indexes, white luminescent
rhodium-coated hours and minutes hands, white luminescent dual time
hand, luminescent Northern and Southern hemispheres globes with blue
Greenwich meridians
Black date on White background
Wristband
Material: Blue Interchangeable textile strap with rope pattern
Buckle type : Double-folding clasp with fine adjustment system
Certified by the Montblanc Laboratory Test 500
🔰Edition Edition
Limitation: 986 piece
🔴Prices € 9,200 / £ 8,300 / $ 9,400 💰
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Press releases - 2025
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