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Celebrating the 160th anniversary of Minerva, the Montblanc 1858 Geosphere honors the heroes of mountain climbing with a professional-grade, innovative timepiece. Built for those who travel the world in their perpetual quest for exploration, it expresses respect for true mountaineers as it is dedicated to the Seven Summits Challenge – the holy grail of climbers. The combination of materials such as steel and ceramic underlines the high quality and exclusiveness of this timepiece. On the dial, the world’s seven summits are marked with red dots on two turning globes and are also engraved on the case back. The timepiece features a new 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 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.
Ident No. MB119286
Movement CaliberMB 29.25
Power42,0 h
Frequence28800,0/h
4 Hz
26 Jewels
Movement Screw BalanceNo
Balance springFlat hairspring
IndicationsHours, Minutes, Second time zone, Hand-type date
ComplicationsWorldtime with turning northern and southern hemisphere globes, 24-hour scale and day/night indication; Dual time indication; Date by disc
BezelBi-directional turning bezel
Anti-Scratch CrystalYes
Crystal ShapeDomed
Crystal DescriptionDomed sapphire crystal with double anti-reflective coating
Crystal TypeSapphire
Distance Between Horns22 mm
Bezel FinishSatin
Water Resistant10 bar (100 m) bar
Case Diameter42 mm
