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Montblanc 1858 Geosphere

 
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The Montblanc 1858 product line is inspired by the professional Minerva watches from the 1920s and 1930s which were conceived for military use and exploration. Reinterpreting these historical timepieces, the Montblanc 1858 product line expresses the spirit of mountain exploration, embodying the modern trend of returning to nature. The Montblanc 1858 Geosphere is dedicated to the world’s Seven Summit mountaineering challenge, the holy grail of mountaineering adventures. It comes in a 42 mm titanium case combined with blue and contrasting icy white design details, finding inspiration in the colours of glaciers. The timepiece features a manufacture world-time complication developed by the Montblanc watchmakers in Villeret: two domed globes, turning in opposite directions, that complete a full rotation in 24 hours. Both are surrounded by a scale with the 24 time zones, along with a day and night indication in contrasting colours. This provides an instinctive way of appreciating the different time zones, aided by the luminescent continents for increased visibility and performance at night. The timepiece is completed with a vintage bi-material technical bracelet made of matt, satin-finished titanium and polished stainless steel.

Ident No. MB125567

Caliber Automatic, self-winding Movement Calibre MB 29.25 Power 42,0 h Frequence 28800,0/h Frequence 4 Hz Rubis Number 26 Jewels Movement Screw Balance No Balance Flat hairspring
Indications Hours, Minutes, Second time zone, Hand-type date Complications Worldtime with turning northern and southern hemisphere globes, 24-hour scale and day/night indication; Dual time indication; Date by disc
Case Material Titanium Dial Description Blue dial with white luminescent Arabic numerals and indexes Bezel Type Bi-directional turning bezel Anti-Scratch Crystal Yes Crystal Shape Domed Crystal Description Domed sapphire crystal with double anti-reflective coating Crystal Type Sapphire Crown Fluted in titanium with Montblanc emblem in relief Bezel Finish Microbille-Poli Water Resistant 10 bar (100 m) bar Case Diameter 42 mm Bezel Material Steel - ceramic

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