Capturing the spirit of mountain exploration, the sfumato green glacier pattern dial of this Montblanc 1858 Geosphere 0 Oxygen is inspired by the deep green colour of the emerald icebergs or “jade bergs”. The timepiece is housed in a 42 mm stainless steel case totally devoid of oxygen with a fluted bi-directional green anodized aluminium bezel with luminescent cardinal points. Powered by the MB 29.25 calibre with Montblanc’s Manufacture worldtime complication, this automatic movement includes rotating Northern and Southern Hemisphere globes, a 24-hour scale, Day & Night indications, dual time display, and a date. A 3D colored laser engraving of the Mont Blanc mountain on the case back as well as an interchangeable steel bracelet with a taper and fine adjustment system complete the timepiece.
Specifications
Case
Shape
round
Glass
Domed sapphire crystal with double anti-reflective coating
Case Back
Titanium case back with “Spirit of Mountain Exploration” special engraving
Case Material
Stainless steel case without oxygen
Bezel Material
Bi-directional turning bezel
Diameter
42 mm
Lug Width
22 mm
Water Resistance
100
Thickness
12.8
Dial
Colour
Green sfumato glacier pattern
Hour Markers
white luminescent rhodium-coated Arabic numerals and indexes
Hands
White luminescent rhodium-coated hours and minutes hands; white luminescent dual time hand
Date
Date by disc
Power Reserve
42 hrs
Movement and Functions
Movement
Automatic movement Manufacture worldtime complication
Caliber
mb 2925
Functions
Automatic movement Manufacture worldtime complication
Special Functions
World time with turning northern and southern hemisphere globes, 24-hour scale and day/night indication
Strap
Material
World time with turning northern and southern hemisphere globes, 24-hour scale and day/night indication
Colour
grey
Buckle
Stainless steel double-folding clasp with fine adjustment system
