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 SuperLumiNova® applied to the continents for increased visibility and performance at night. The timepiece is completed with a bi-metal titanium and stainless steel bracelet.
Specifications
Case
Shape
Round
Glass
Sapphire domed
Case Back
Titanium case back with Mont Blanc mountain engraving with a compass and two crossed ice pick-axes
Case Material
Titanium
Diameter
42 mm
Thickness
12.8 mm
Dial
Colour
Blue
Hour Markers
White Luminescent Arabic Numerals And Indexes
Hands
Rhodium-coated and white, Luminescent cathedral-shaped hour-hand and minute-hand, white luminescent time zone hand
Date
Date indication at 3 o'clock
Power Reserve
Approx. 42 hours
Movement and Functions
Movement
Automatique
Caliber
MB 29.25
Movement Description
Mechanical movement with automatic winding, world time
Functions
Hours, Minutes, Second time zone, Hand-type date
Special Functions
World time with northern and southern hemisphere globes, 24-hour scale and day/night indication; Dual time indication; Date by disc
