For SIHH 2018 Montblanc introduced the 1858 Collection (you can read more here). Part of that collection, the Montblanc 1858 Geosphere embodies the spirit of mountain exploration with a professional and innovative timepiece that is destined for those who travel the world in their quest for exploration. This timepiece features a brand-new manufacture worldtime complication powered by the calibre MB 29.25, developed by the Montblanc engineers in Villeret.

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The Montblanc 1858 Geosphere is dedicated to the world’s Seven Summit mountaineering challenge, the holy grail of mountaineering adventures where climbers set out to ascend the highest mountains from each continent. The Seven Summits challenge is recognized as the most difficult mountaineering quest worldwide and only 500 athletes have achieved the mission to date.

This timepiece features a worldtime complication with two turning domed hemisphere globes, which make a full rotation in 24 hours. The northern hemisphere at 12 o’clock turns anti- clockwise, while the southern hemisphere turns clockwise. They are both surrounded by a scale with the 24 time zones, along with a day/night indication in contrasting colours. The longitude reference meridian for both hemispheres is highlighted with a white line coated with SuperLumiNova. Additionally, a second time zone display is located at nine o'clock and a date (linked to the local time) is indicated in an aperture at three o'clock. With this new worldtime display of the two hemispheres, the Montblanc 1858 Geosphere brings a new instinctive way of appreciating different time zones.

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The world’s Seven summits are marked on the globes with red dots, enhancing the spirit of mountain exploration. They are also engraved on the case back along with the unique drawing of the Mont Blanc mountain, a compass and two crossed ice pick-axes. SuperLumiNova has also been applied to the continents for increased visibility and performance at night.

The black dial of the Montblanc 1858 Geosphere features contrasting colours with the addition of rhodium-coated or red gold-coated elements, depending on the models. The watch includes all the design codes from the 1858 collection with beige luminescent Arabic numerals and indexes, the authentic Montblanc logo from the 1930s, domed and resized cathedral-shaped hands, as well as a railway track that all come together in this highly legible, vintage-inspired timepiece.

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The timepiece comes in two versions, with a stainless steel case or a limited edition bronze case. Both feature polished and satin-finishing as well as vintage fluted crowns with the Montblanc emblem in relief. A new bidirectional stainless steel or bronze bezel with shiny black ceramic completes the design. The bezel is also fluted on the flank for a better grip and features the four cardinal points which have been engraved.

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The Montblanc 1858 Geosphere is water resistant to 100 metres and is certified by the Montblanc Laboratory Test 500. It comes on a choice of a high-quality black “NATO” strap, a cognac-coloured aged calfskin strap with beige stitching or a new brown Sfumato aged calf leather Bund strap with beige stitching, reminiscent of historical Minerva timepieces from the 1920s and 1930s that were equipped with this kind of strap and that were ideal for military use and mountain exploration. The Bronze series is limited to 1858 pieces, paying tribute to the year of foundation of the Minerva Manufacture.

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Montblanc 1858 Geosphere Limited Edition 1858

Ident. 117840

Movement: Calibre MB 29.25

Type of movement: Mechanical movement with automatic winding, worldtime

Number of rubies: 26

Power reserve: Approx. 42 hours

Balance: Flat hoop

Frequency: 28,800 A/h (4 Hz)

Hairspring: Flat

Displays: Hours and minutes from the centre, date at 3 o’clock; Second time zone at 9 o’clock; Turning northern and southern hemisphere globes at 12 o’clock and 6 o’clock with a 24-hour scale and day-night indication

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Habillage

Case: Bronze with slim curved horns featuring polished and satin- finishing. Bi-directional bronze bezel with black ceramic, knurled finishing and engraved cardinal points

Crystal: Scratch-resistant, domed sapphire crystal with antireflective coating

Back: Bronze-coated titanium with “Spirit of Mountain Exploration” special engraving

Dimensions: Diameter = 42 mm; height = 12.8 mm

Watertightness: 10 bar (100 m)

Crown: Fluted bronze with Montblanc emblem in relief

Dial: Black with beige Arabic numerals coated with Super-LumiNova, red gold-coated luminescent cathedral-shaped hour-hand and minute-hand, beige timezone hand coated with Super-LumiNova, historical Montblanc logo at 3 o’clock

Wristband: Brown Sfumato aged calf leather Bund strap with beige stitching coming from the Montblanc Pelletteria in Florence, stainless steel and bronze-coated pin buckle

Limited Edition: 1858

Also available with cognac-coloured aged calfskin strap with beige stitching (119347). Additional non-limited version is available with a stainless steel case and a high-quality, black “NATO” strap (Ident. 117837) or with a stainless steel case combined with a brown Sfumato aged calf leather Bund strap (Ident. 117838) or cognac-coloured aged calfskin strap with beige stitching (119286)

Certified by the Montblanc Laboratory Test 500

The price for the Montblanc 1858 Geosphere Limited Edition 1858 is €5,190 for the Stainless Steel version and €5,890 for the Bronze version.

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For more visit Montblanc Online.