Montblanc 1858 Geosphere Annual Calendar Limited Edition
Maison unveils two new Montblanc 1858 Annual Calendar Geosphere Limited Editions as well as a brand-new Minerva manufacture movement to accompany them.
The First Annual Calendar Geosphere in Minerva’s Movements Portfolio
Montblanc introduces two new Montblanc 1858 Annual Calendar Geosphere Limited Editions powered by a brand-new manually wound manufacture Minerva movement, featuring an annual calendar (hours, minutes, seconds, date, and month indications), a large date and a worldtimer function. The movement has a power reserve of approx. 65 hours and is composed of 336 parts, all of which are hand-decorated using traditional haute horlogerie techniques such as Côtes de Genève and a rarely seen snail finishing. Well-suited to complement this level of craftmanship, its workings can be admired through a sapphire crystal case back.

Annual Calendar Functions
For the annual calendar functions, the large date is positioned at 12 o’clock, just above the historic Montblanc logo, and features two large apertures positioned side-by-side. The date is easily adjustable thanks to a corrector located at 2 o’clock. For the months, Montblanc has chosen to display them around the dial’s periphery via a red arrow showing the month in question, making them easily readable at a glance. The red arrow is a nod to the Roman goddess Minerva, the deity of craftsmanship, who was known for carrying a spear with an arrow at its tip. It also has a rich history rooted in early aviation Minerva chronographs from the 1920s and 1930s. A keen eye will notice that the month of July has been replaced by the word ‘Minerva’ as it was on July 30th 1887 that the Minerva trademark, and its recognizable arrow, were registered.
Hand-Painted Northern Hemisphere Globe
The visual focal point of these timepieces is their hand-painted, three-dimensional, rotating globe featuring the Northern Hemisphere and a Day & Night indication. The globe also indicates Greenwich Mean Time line with an orange line and a 24-hour scale. Crafted from sapphire crystal, each globe is hand-painted on the underside by a Swiss artisan, who spends four hours meticulously painting each one. The globes in these two new models represent the Northern Hemisphere, while the Southern Hemisphere is available on request.

Two New Limited Editions
The timepieces come in a 42mm case in a choice of Lime Gold 750/1000 (18 karats) (30 pieces) or stainless steel (100 pieces). Both editions are fitted with fixed fluted bezels inspired by Minerva’s historic timepieces and the first fluted bezels that date back to 1927. Today, the fluted bezel is a signature design feature of all Minerva timepieces. The Lime Gold model has a matching Lime Gold 750/1000 (18 karats) bezel, whereas the stainless steel version comes with a white gold 750/1000 (18 karats) bezel.
1950s Aesthetic
The timepieces are inspired by the aesthetic codes from Minerva’s heritage, notably the 1950s: the watches from this period in the manufacture’s history are particularly recognized for their elegant dial designs and precision watchmaking. Minerva’s in-house manufacturing capabilities and limited production quantities have further enhanced the exclusivity of these timepieces, making them highly sought-after by watch enthusiasts and collectors today.
These two new limited editions celebrate this period of Minerva heritage with their silver/white- coloured sunray and grained dials with blue-coated hands and indexes (for the stainless steel version) and yellow gold-coated hands and indexes (for the Lime Gold 750/1000 (18 karats) model), all while offering wristwatches that present a new take on some of the most well-known timepieces from Minerva’s past.
Montblanc 1858 Geosphere Annual Calendar Limited Edition – 100 pieces
Ident. 134026
Movement Calibre MB M14.58
Type of movement Manufacture hand-finished manually wound movement.
Annual calendar and worldtime complications
Number of components 336
Number of rubies 64 jewels
Power reserve Approx. 65 hours
Balance Balance with screws, diameter = 10.00 mm
Frequency 18 000 A/h (2.5 Hz)
Hairspring Flat
Plate Rhodium-plated German silver, circular graining, hand-chamfered edges
Bridges Rhodium-plated German silver with “Côtes de Genève”, hand-chamfered edges
Going-train Gold-plated, circular grained, chamfered, diamond hubs on both sides
Displays Hour, minute and seconds from the center
Annual calendar with big date and month displays
Worldtime with turning northern hemisphere, 24-hour scale with day/night indication
Habillage
Case Stainless steel case with polished and satinated finishing
Bezel White gold 750/1000 (18 karats) fixed fluted bezel, satinated and polished Crystal Scratch-resistant, domed shaped sapphire crystal with anti-reflective coating
Back Stainless steel case back with inset pane of sapphire crystal
Dimensions Diameter = 42 mm; height = 13,30 mm
Water-resistance 3 bar (30m)
Crown Fluted in stainless steel with Montblanc emblem in relief
Dial Silver-white coloured dial with blue-coated indexes; white luminescent blue-coated hour and minute hands; blue-coated seconds hand
3D sapphire hand-painted Northern Hemisphere turning globe with
orange Greenwich meridian and day & night indication; Month disc with
Minerva instead of July; historical Montblanc logo and Minerva logo
Wristband Blue interchangeable calf leather strap with alligator print and stainless
steel triple-folding clasp with fine adjustment system
Limited Edition 100
Certified by the Montblanc Laboratory Test 500H
Super-LumiNova® is a registered trademark which is not owned by Montblanc.
Montblanc 1858 Geosphere Annual Calendar Limited Edition – 30 pieces
Ident. 134027
Movement Calibre MB M14.58
Type of movement Manufacture hand-finished manually wound movement.
Annual calendar and worldtime complications
Number of components 336
Number of rubies 64 jewels
Power reserve Approx. 65 hours
Balance Balance with screws, diameter = 10.00 mm
Frequency 18 000 A/h (2.5 Hz)
Hairspring Flat
Plate Rhodium-plated German silver, circular graining, hand-chamfered edges
Bridges Rhodium-plated German silver with “Côtes de Genève”, hand-chamfered edges
Going-train Gold-plated, circular grained, chamfered, diamond hubs on both sides
Displays Hour, minute and seconds from the center
Annual calendar with big date and month displays
Worldtime with turning northern hemisphere, 24-hour scale with day/night indication
Habillage
Case Lime Gold 750/1000 (18 karats) case with polished and satinated finishing
Bezel Lime Gold 750/1000 (18 karats) fixed fluted bezel, satinated and polished
Crystal Scratch-resistant, domed shaped sapphire crystal with anti-reflective coating
Back Lime Gold 750/1000 (18 karats) with inset pane of sapphire crystal
Dimensions Diameter = 42 mm; height = 13,30 mm
Water-resistance 3 bar (30m)
Crown Fluted in Lime Gold 750/1000 (18 karats) with Montblanc emblem in relief
Dial Silver-white coloured dial with rose gold-coated indexes; white luminescent rose gold-coated hour and minute hands; rose gold- coated seconds hand
3D sapphire hand-painted Northern Hemisphere turning globe with orange Greenwich meridian and day & night indication; Month disc with Minerva instead of July; historical Montblanc logo and Minerva logo
Wristband Blue interchangeable calf leather strap with alligator print and Lime Gold
750/1000 (18 karats) & stainless steel triple-folding clasp with
fine adjustment system
Limited Edition 30
Certified by the Montblanc Laboratory Test 500H
Super-LumiNova® is a registered trademark which is not owned by Montblanc.
About Minerva
Founded in 1858 in the Swiss Jura valley of Villeret, the Manufacture Minerva has been in continuous operation for over 165 years. Specializing in chronographs and sports counters, Minerva’s precision has received numerous world distinctions over the years. What sets Minerva movements apart is that each movement is assembled from start to finish by the same watchmaker. There are also a number of important details that you will only find in a Minerva movement: an incredible level of finishing, with bridges and baseplates in traditional German silver; a Minerva arrow that pays tribute to the Roman Goddess who is always depicted with her arrow-tipped staff in hand; an unusual “V”-shaped bridge inspired from the view of the mountains seen from the watchmakers’ window in Villeret; in-house hairsprings; and a special snail finishing.
Both Montblanc and Minerva are dedicated to pushing the limits of aesthetic and technical excellence. They are connected by fine craftsmanship, they are connected by mountains and valleys. They are connected by a quest for perfection.
Montblanc is Minerva, Minerva is Montblanc.
About Montblanc
Synonymous with excellence in craftsmanship and design, Montblanc has been pushing the boundaries of innovation ever since the Maison first revolutionized the culture of writing in 1906. Ingenuity and imagination continue to be driving forces for the Maison today as it advances its expression of fine craftsmanship across product categories: writing instruments, watches, leather goods, new technologies and accessories. Reflecting upon its ongoing mission to create fine lifetime companions born from bold ideas and expertly crafted through the skills of the Maison’s artisans, the iconic Montblanc Emblem has become the ultimate seal of performance, quality and an expression of sophisticated style. To spread the message of Inspire Writing, MONTBLANC HAUS opened its doors in 2022, welcoming visitors from all over the world to discover and rediscover the power of putting pen to paper. As part of its on-going commitment to elevating and support those who strive to leave their mark, Montblanc continues to assert its encouragement of education programs around the world and initiatives that inspire people to express their full potential.
Montblanc is available at Rustans Makati, Rustans Shangri-La, Rustan’s Cebu, Greenbelt 5, and Solaire Resort Entertainment City.