Montblanc 1858 Geosphere

The Montblanc 1858 line is inspired by legendary professional watches produced by Minerva in the 1920s and 1930s for the army and the exploration. Reinterpreting these historical models, Montblanc 1858 reflects the spirit of mountain exploration and is part of the current trend of a return to nature. The Montblanc 1858 Geosphere watch is dedicated to the challenge of the seven summits, the Holy Grail of mountaineers. It is presented in a 42 mm stainless steel case with black details and contrasting beige. The watch is provided with a universal hours of manufacture of manufacture made by Montblanc watchrs in Villeret: two curved globes evolving in an opposite direction make a complete rotation in 24 hours. The globes are surmounted by a graduation for the 24 time zones and a day/night indicator in contrasting colors. The different time zones can thus be apprehended intuitively, using the luminescent continents which improve visibility and performance in darkness. The chronograph is mounted on a vintage stainless steel technical bracelet.

Ident No. 125872
Movement type: automatic movement
Caliber movement: MB 29.25
Number of rubies: 26 Jewels
Flat spiral
Complications: Hours of the world with rotating globes of north and south hemispheres, 24 -hour scale and day/night indication; Second time zone; Date by a disc
Composition of the case: stainless steel
Dial: black dial decorated with Arabic and Luminescent Beige index figures
Glasses: bidirectional rotary bezel
Anti-scratch crystal: Yes
Crystal shape: curved
Crystal description: curved sapphire glass, double anti -reflective treatment
Crystal type: sapphire
Crown: notched in stainless steel and decorated with the montblanc emblem in relief
Waterproof: 10 bar (100 m) bar
Composition of the back of the case: bottom of the sapphire ice cream
Box diameter: 42 mm
Composition of the telescope: Steel - Ceramics