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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 legendary 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 colors of glaciers. The timepiece features a manufacture worldtime complication developed by the Montblanc watchmakers in Villeret: two domed globes turning in opposite directions, which 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 colors. This provides an instinctive way of appreciating the different time zones, aided by SuperLumiNova® applied to the continents for increased visibility and performance at night. The timepiece is finished with a vintage bi-material technical bracelet made of matt, satin-finished titanium and polished stainless steel.

Ident No. MB125567

Movement Type Automatic, self-winding Movement Caliber MB 29.25 Power 42,0 h Frequence 28800,0/h Frequency 4 Hz Number of jewels 26 Jewels Movement Screw Balance No Balance spring 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 Blue dial with white luminescent Arabic numerals and indexes Bezel Bi-directional turning bezel Anti-Scratch Crystal Yes Crystal Shape Domed Crystal Description Domed sapphire crystal with 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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