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Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →The Montblanc 1858 Geosphere Annual Calendar Limited Edition combines an annual calendar and large date with the collection’s rotating world-time globe. The official Canadian listing identifies the watch as reference MB134026, a boutique-exclusive edition limited to 100 pieces.
What distinguishes this Geosphere annual calendar?
Its manually wound Montblanc manufacture calibre MB M14.58 brings together three functions: an annual calendar, a large date and world time. The dial pairs conventional calendar information with the Geosphere’s three-dimensional globe rather than relying on a separate city ring for the world-time display. Montblanc’s Canadian product listing identifies the model and its functions.
How are the calendar and world time displayed?
Annual calendar and large date
The large date appears at 12 o’clock in two apertures, while the months are arranged around the dial’s outer edge. Montblanc describes the movement as an annual calendar, but the product listing does not specify the calendar’s setting procedure or how often it requires correction; those details should be confirmed with a boutique before purchase.
Rotating globe
A hand-painted, three-dimensional rotating globe depicts the Northern Hemisphere. It is paired with a day/night indication and a 24-hour scale to provide the world-time display.
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- Model 130.23.41.22.06.001
Case, dial and strap
- Case: 42 mm stainless steel.
- Bezel: Fixed, fluted 18-karat white gold.
- Dial: Silver-white with sunray and grained finishes, blue-coated hands and indexes.
- Strap: Interchangeable blue calf leather with an alligator print.
- Clasp: Stainless-steel triple-folding clasp with fine adjustment.
Montblanc also describes interchangeable straps and fine adjustment at the collection level. That does not establish which replacement strap references fit MB134026. The 1858 collection page provides the broader collection context.
Edition size and availability
The official Canadian product listing identifies MB134026 as a 100-piece limited edition and labels it boutique exclusive. It provides a contact or enquiry route; availability and pricing depend on region and can change, so contact a local Montblanc boutique for current information.
What Montblanc has said about the movement
In a video published on 2025-04-05, Montblanc’s verified channel says, “All 336 parts of the new manually wound Minerva movement are visible through the sapphire case back.” The video description uses the annual-calendar Geosphere name but does not identify reference MB134026. The 336-part figure therefore cannot be attributed to this exact reference on the available model-specific information. Montblanc’s video is the source of that statement.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Who might find it compelling?
MB134026 is aimed at someone who wants calendar information and a world-time indication in a distinctive display, and who appreciates a manually wound movement. Its 42 mm case, gold bezel and 100-piece production run are also central to its appeal. The official listing establishes the specifications, not performance or comfort in wear, so those are best assessed in person.
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Quick Recap
Best Value
Rank #4
- Timeless styling that effortlessly takes you from work to play.
- Analog Month/Day/Date, Moonphase Indicator
- Black Stainless Steel
- Spherical Mineral Crystal
- 100 Meters Water Resistant and 5 Year Limited Warranty
Rank #3
- Set of 12, comes with a convenient storage pouch
- Reversible: brushed gold on one side, brushed silver on the other
- Oval calendars for watch bands fold to fit most watch bands
- Each plate measures 5/8" long x 1 1/2" wide
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
